The last good thing you did with a computer?

Hey guys,

I'm curious to know a little more about our community, mainly, what is the last thing you did with computers that helped someone (and you didn't charge or benefit in any way)?

I wrote a program to help my mom manager her floral shop. She uses it daily and it helps out when customer call to place orders, since she has their address and frequent clients addresses on file. It also does other things, but knowing I'm helping her out feels good ;)

I also wrote a search engine for the United States Holocaust Memorial Museum, but I got a research paper out of that...so I guess that doesn't really apply, but it did make me feel good :)

How about you?!