Humble Bundle, Inc. has released yet another Humble Indie Bundle to close out 2012 in style, and Humble Indie Bundle 7 is a doozy. You can pay what you want to get Snapshot, The Binding of Isaac, Closure, Shank 2, and Indie Game: The Movie (which is, in fact, a movie, and not a game). Then, pay more than the current average (right now it's $6.18) and you get Legend of Grimrock and Dungeon Defenders (plus its DLC) as well.
All games are available on Windows, Mac and Linux, and they also come with their soundtracks and, for those who pay more than $1, Steam keys.
These are all great games in their own right, and you can choose exactly where the money goes: to the developers, to the Electronic Frontier Foundation and Child's Play charity, or as a tip to Humble Bundle, Inc. itself.
Why not do something good and get some games at the same time? And hey, with the world ending on Friday, you might as well give them all your money. Free money for everyone, in fact!