Make the deal. After you've found a barter partner, get the agreement in writing. Make sure you detail what services or goods will be involved, the date of the exchange (or work to be done) and any recourse if either party reneges on their part of the deal. If you are working through a membership-based bartering association, they will likely provide all the structure and paperwork you need for the deal. 

I see a LOT of potential when it comes to locally owned businesses but it’s really a shame to see them open the beginning of May and by November they’re already closed (and they’re in locations I’d LOVE to be at when things start taking off – Dundas between Jarvis and Mutual for example) – same old crap still comes and goes though. Bartering doesn’t mean you’re being taken or taking someone ‘for a ride’ – it’s how small town downtowns survive and in many ways we can learn from that. When a customer likes what you provide they trust your judgment and are likely to check out that juice bar two doors down if you’re promoting it. The key to get back our stable neighbourhoods – I’m looking at us, Downtown East – is the commitment to hanging in there and helping each other out. When you’re doing your own business you know it’s not just a 40 hour workweek – it’s all the time. Any chance we can take to promote not just our business but what we love doing…as well as being happy to see neighbouring businesses do well…makes all this hard work worth it.
David Graeber argues that the inefficiency of barter in archaic society has been used by economists since Adam Smith to explain the emergence of money, the economy, and hence the discipline of economics itself.[2] "Economists of the contemporary orthodoxy... propose an evolutionary development of economies which places barter, as a 'natural' human characteristic, at the most primitive stage, to be superseded by monetary exchange as soon as people become aware of the latter's greater efficiency."[3] However, extensive investigation by anthropologists like Graeber has since then established that "No example of a barter economy, pure and simple, has ever been described, let alone the emergence from it of money; all available ethnography suggests that there never has been such a thing. But there are economies today which are nevertheless dominated by barter."[4]
On paper, this sounds a bit like delayed barter, but it bears some significant differences. For one thing, it’s much more efficient than Smith’s idea of a barter system, since it doesn’t depend on each person simultaneously having what the other wants. It’s also not tit for tat: No one ever assigns a specific value to the meat or cake or house-building labor, meaning debts can’t be transferred. 

In his analysis of barter between coastal and inland villages in the Trobriand Islands, Keith Hart highlighted the difference between highly ceremonial gift exchange between community leaders, and the barter that occurs between individual households. The haggling that takes place between strangers is possible because of the larger temporary political order established by the gift exchanges of leaders. From this he concludes that barter is "an atomized interaction predicated upon the presence of society" (i.e. that social order established by gift exchange), and not typical between complete strangers.[14]
Other anthropologists have questioned whether barter is typically between "total" strangers, a form of barter known as "silent trade". Silent trade, also called silent barter, dumb barter ("dumb" here used in its old meaning of "mute"), or depot trade, is a method by which traders who cannot speak each other's language can trade without talking. However, Benjamin Orlove has shown that while barter occurs through "silent trade" (between strangers), it also occurs in commercial markets as well. "Because barter is a difficult way of conducting trade, it will occur only where there are strong institutional constraints on the use of money or where the barter symbolically denotes a special social relationship and is used in well-defined conditions. To sum up, multipurpose money in markets is like lubrication for machines - necessary for the most efficient function, but not necessary for the existence of the market itself."[12]
As Orlove noted, barter may occur in commercial economies, usually during periods of monetary crisis. During such a crisis, currency may be in short supply, or highly devalued through hyperinflation. In such cases, money ceases to be the universal medium of exchange or standard of value. Money may be in such short supply that it becomes an item of barter itself rather than the means of exchange. Barter may also occur when people cannot afford to keep money (as when hyperinflation quickly devalues it).[15]

Nowinska says one of the biggest challenges Swapsity faces is that new barterers think they have nothing to offer. So they offer bad trades. Yet most people have hundreds of skills—from cooking to networking to scrapbooking. The trick is learning to recognize the value of your skills, your knowledge and your talent. Bartering attaches value to things that are not always recognized, or highly valued, in a cash economy—often hobbies that people can’t make a living on but love to do. One Barter Babe trades her homemade canned goods for gifts—mostly other crafted items—she can give away at Christmas. A Swapsity member has traded pounds of fiddleheads she picks at her mom’s house in the country for feng shui sessions.
However, this isn’t always possible. For instance, you may have a $150 digital music player and want a small refrigerator worth $100. In this case, if both parties are certain of what they want and understand the difference in value, there should be no barterer’s remorse. Alternatively, you can ask for the mini-fridge plus $50 to make the trade – the worst anyone can say is “no.” 

Use our virtual trade currency called Trade Dollars to purchase anything you want within the exchange. Our Trade Dollars are equivalent to the value of the Canadian Dollar. Our members are asked to price their products and services within the exchange at fair market value. This means you pay exactly the same amount for the offered goods and services as you would in the cash world. The only difference is, you now have the ability to buy things at a discount or at your own cost of doing business!
Although, as a general case, a ship unlucky in falling in with whales continues to cruise after them until she has barely sufficient provisions remaining to take her home, turning round then quietly and making the best of her way to her friends, yet there are instances when even this natural obstacle to the further prosecution of the voyage is overcome by headstrong captains, who, bartering the fruits of their hard-earned toils for a new supply of provisions in some of the ports of Chili or Peru, begin the voyage afresh with unabated zeal and perseverance.
Within the week, Simmons gave notice to her employer. By then, she’d been pining to leave for eight months and had diligently saved for the occasion. Her plan now was to barter her financial services with other women for one year. That would be enough time, she figured, to get the altruism out of her system, but not so much that she’d go broke. She would use $10,000 in savings to pay her cellphone bill and to parcel out $35 in emergency spending each week if and when bartering fell through on the basic necessities. That money would also help pay for most of the rent at the Dovercourt and Queen apartment she shared with her boyfriend, Matt, who was in the midst of changing careers. Everything else—food, clothing, haircuts, fitness, entertainment and transportation around the city—she would acquire through barter. Simmons figured she’d need to barter with 300 women to make it work. She gave the project a catchy name, Barter Babes, and started organizing a launch party.
Barter Network Ltd. is a proud member of The International Reciprocal Trade Association, IRTA, which is a non-profit organization committed to promoting just and equitable standards of practice and operation within the Modern Trade and Barter and other Alternative Capital Systems Industry, by raising the awareness and value of these processes to the entire Global Community. IRTA provide all Industry Members with an ethnically based global organization, dedicated to the advancement of Modern Trade and Barter and other Alternative Capital Systems, through the use of education, self-regulation, high standards and government relations. The Board of IRTA consists of Key Players in the Barter Industry, With Patti Falus President of Barter Network Ltd. being the only Canadian who sits on the Board.
In 2012, the average Canadian had more than $27,000 in consumer debt. Wages are shrinking, costs are rising, and one-third of us are living paycheque to paycheque. “Most of us live beyond our means both financially and ecologically,” says Marta Nowinska, founder and president of one of Canada’s largest bartering communities, Swapsity, which launched in 2010. “Swapping is a viable approach to solving a lot of real problems,” she says. Like Simmons, Nowinska left a Bay Street job to join the world of barter. The idea for Swapsity came to her one day in 2006: she was on the subway and noticed how miserable everybody looked. She started to think about a business that could empower people. At first, she thought people could swap jobs, but dismissed it as unrealistic. Then: what if they could swap other things? She developed a business plan and launched a website.
Another advantage of bartering is that you do not have to part with material items. Instead, you can offer a service in exchange for an item. For instance, if your friend has a skateboard that you want and their bicycle needs work, if you are good at fixing things, you can offer to fix their bike in exchange for the skateboard. With bartering two parties can get something they want or need from each other without having to spend any money.
An alternate currency, denominated in labour time, would prevent profit taking by middlemen; all goods exchanged would be priced only in terms of the amount of labour that went into them as expressed in the maxim 'Cost the limit of price'. It became the basis of exchanges in London, and in America, where the idea was implemented at the New Harmony communal settlement by Josiah Warren in 1826, and in his Cincinnati 'Time store' in 1827. Warren ideas were adopted by other Owenites and currency reformers, even though the labour exchanges were relatively short lived.[17]
^ Homenatge A Catalunya II (Motion Picture). Spain, Catalonia: IN3, Universita Oberta de Catalunya, Creative Commons Licence. 2010. Retrieved 2011-01-15. A documentary, a research, a story of stories about the construction of a sustainable, solidarity economics and decentralized weaving nets that overcome the individualization and the hierarchical division of the work, 2011.
No, said Mises, for if taken back far enough, there comes a point at which money first emerges as a medium of exchange out of a pure barter economy Prior to this, it is valued only for its non-monetary uses as a commodity The demand for money is therefore pushed back to the last day of barter, where goods are traded only in direct exchange, and where the temporal element of the regression theorem ends It is in this way that all charges of circularity are obviated.