If you didn't get a chance to spend all your money during the
Steam Fall Sale last month don't worry: Steam is running another sale, stretching from Dec. 23 to Jan. 2nd.
GOG.com is also running a sale until the 28th. So if you like old style games you'll want to take a look.
Also, Origin is running a sale again. But the site doesn't say when it will end. Probably around the same time the Steam sale ends.
Again, post if you pick anything up!