Electronics: Goodwill is an Electronics Goldmine

Seriously. Especially old, outdated stuff. And if your looking for wall warts, you just can't beat Goodwill. We went in there looking for 80's cloths for a theme party, I walked out with 3 9 volt, 500 mA wall warts for less than 3 bucks. Cheapest I could find them online was about 3 bucks a piece. Radio Shack sells them for about 20 bucks. I'm sure everyone who is an electronics tinkerer already knew this, and I'd heard it years ago, but I was blown away. Worth keeping in mind for the microcontroller projects.