In these days of tight money and an uncertain economy, it makes sense to bring back that barter system. Simple bartering can take two forms; one can trade commodities or services. Although the service station may not be amenable to accept used clothing or an offer to sweep the drive for a gasoline fill up, there are reasonable bartering options.
Trade items at garage sales and second hand shops - Instead of offering cash, offer to trade items. The garage sale operator is trying to get rid of unwanted or unneeded items, but you may have a viable trade. For instance, my neighbors recently had their first child and needed baby items. At their garage sale they traded a used digital camera for a box of baby clothes. Both parties were pleasantly surprised.
Most second hand shops are quite willing to trade, but remember they are in business to make money; therefore, the trade value will most likely be in their favor. However, if you have a need and something to trade, it may be in your best interest to accept a loss. But don't foolishly trade your flat screen TV for a transistor radio.
Trade labor - Although it may be difficult to get an attorney that charges hundreds of dollars per hour to accept an offer of a hedge trim for a will, there are labor-trading opportunities. If you know an electrician, plumber, painter, plasterer, or other such skilled person, it may be possible to arrange a trade of your skills for minor projects from them. And even if you have not been to a University or trade school, you do have skills that are required. Perhaps just mowing lawn or washing windows would compensate for a leaky faucet repair, or typing a paper for an electrical switch replacement. Opportunities exist for everyone; you just need to search and question. Don't be shy. Your plumber or mechanic neighbor may be just as eager to utilize your expertise, as you are to use whatever they can offer.
In all cases attempt to avoid the inclination of putting a dollar value on relative worth of services. Hours can be wasted arguing about the hourly rate of a seamstress as opposed to a plumber. Think only of the project and what it is worth to you. If it makes sense, do it!