[UPDATE] It looks like Steam is feeling a bit more generous for the new year. The Steam Holiday Sale, which was planned to end on January 5, has now been extended until the end of the weekend. So you have until January 7 to grab some titles.
If you haven't been on Steam lately, your missing out. The Steam Holiday is still ongoing and as usual, the price cuts are ridiculous. I'm sure some of you still have money left to burn after the holidays because you have until January 5 to make those regretful purchases.
Today is the 15th day of the sale. Civilization 5 and it's expansions, the Thief series, and Bastion is down by 75%. Tropico 4, originally $30 bucks, is now down to 6 bucks, which is an 80% discount. Price for I Am Alive is down by 66%, while Football Manager 2013 is down by 50%. Yesterday's deals, which included Magicka, the Tomb Raider series, Pain Killer Series, and KOTOR 1 and 2 are still on sale for a couple more hours.
Flash deals and the community choice is still changing every few hours, so be sure to check back every so often.
I've already caved in some deals. A couple of days ago, Orcs Must Die 2 was on sale for 75% off and I just had to get it. Also, me being a Civilization fan and already owning the original Civ 5, I bought the expansion Gods and Kings for 75% off as well.