Everyone has at least a few items that they don't really want but can't bear to throw away. Freecycle it. Freecycling is giving something to someone who will use it -- for free -- instead of throwing it in the garbage. (To find or start a local group, visit freecycle.org). It's simple: post a message on your local freecycle group's Web site, decide who will get your item, then arrange a pick up time. Members give and get everything from moving boxes to cabinetry.
Freecycling costs nothing but time, and keeps usable items out of local landfills.