Ever be in the market for something you just know will turn up on craigslist for a decent price sooner or later, but forget to search daily? Or you give up quickly and pay more than necessary because you don't check it daily?
Well the site CL Genie does it for you! Simply pick your location, what you're looking for, your email address, and a min / max price if you'd like, and *poof* CL Genie goes to work and continuously search craigslist for new posts containing your item. When it finds your object of desire, it promptly sends out an email alerting you!
Yay now I can buy more useless stuff!