Although the site name may be hard to decipher (gi-gO-it), it's not hard to understand its purpose: you don't have to throw the stuff you don't want in the landfill, just give it away instead! Gigoit is a hub for green-minded folks to hold virtual garage sales — except here, everything is free.
Find all kinds of items on Gigoit within your search area that are not only usable, but that will reward your conscience as well. Yes, yes, you could use Craigslist's Free section to find what you want online, too, but why not try a site that's committed to keeping the earth clean by recycling your usable items, and donating to green earth causes? Sounds like a deal to me.