It could be a site or a software gadget. I'm really interested. My contributions are as follows:
Free phone calls - Only lasted about six months but it was for real. It was called GO2Call (they now charge). I regularly used it to call my brother long distance, from my PC to his phone. (wonder if there are any equivalents still running)
Peer to Peer Kazaa (of course) etc with free movies and music and other.
EZMACRO - a tiny proggy from American Systems which I now use at work to do repetitive tasks across any and all programs. I use it to the extreme and cut my workload by third! Cost me £7 and I didn't even try to get it for free because I knew how good it was and wanted to reward the writer. The other morons at work p*ss their days away unnecessarily bashing their keyboards - I hit one hotkey!
Last one is a bit of a cheat but found out about it off the net. Giga transmitter which wirelessly plays me downloaded films on me TV! (Pc upstairs - TV downstairs) No burning or converting no trailing wires just bang the play button.
Astro Turf, Steam Cleaners?
Please tell me yours.