Stockings ready? Wallets out? Steam's winter holiday sale has begun.
Right now there are sales on a whole bunch of franchises, including Hitman, Prince of Persia, and many others. You can get Borderlands 2 for $30, for example.
There are also some big publisher bundles: $90 gets you a whole bunch of Bethesda games, including Skyrim and Dishonored. And for $70 you can get a metric ton of indie games including Mark of the Ninja and Ys Origins.