Swap.com lets its users trade books, movies, music, or video games at about $4 per item swapped, including shipping costs. When you join, you create two lists, “Items I Have” and “Items I Want.” You can begin swapping “as soon as you sign up.”
Swapadvd.com can be “a movie maven’s best friend.” When another member chooses a DVD from the ones you’ve listed as available, you pay $2 to ship the package out and receive a credit to get a DVD shipped to you.
Timebanks.org provides “an interesting new way to swap favors.” If a “Time Bank” exists in your community—there are about 100 so far—you can donate “as little as an hour of your time” pet-sitting or performing some other requested small task. Each good deed earns you credit for a favor you may need done.
Source: Good Housekeeping