I don't know if you guys ever heard about this website, but it's a good one giving away (that is, giving freely) one program a day.
I got some useful tool this way. Problem is that you can't keep these programs if you format your hard drive.
Link : http://www.giveawayoftheday.com (aka GAOTD)
There is also a game version, named GGAOTD, for game give away of the day.
Link : http://game.giveawayoftheday.com/
Each day (even on sunday) a new program and a new game. If most of them are useless, some are really interesting sometimes.
For example, today's game is Space Interceptor, a nice 3D shooting game. It makes me want to re-install good old Wing Commander serie.
Game giveaways are now avalable on main page and only for the week-ends. Today's game is a F1 racing game named Special event Racing. Give it a try before giveaway offer ends.
Link : http://www.giveawayoftheday.com/special-event-racing/