eBay’s not the only clickable garage sale. At some sites, you can trade goods and services, as well as plunk down cash. A quick tour:

Swapthing (www.swapthing.com)
Thousands of items in beaucoup categories — art, books, electronics, medical supplies, and much more. Free registration.

U-Exchange (www.u-exchange.com)
Good place to arrange house swaps, i.e., two weeks in Chicago for two weeks near Disney World. Free registration.

Barter Your Services (www.barteryourservices.com)
If you’re a CPA looking to trade an audit for a stint with a personal trainer, check out this site. Joiner fee: $18 for three months or $48 for one year. — Chris Tucker