The two that I just indulged in:
The Body Shop has everything 50% off (except for a few holiday sets from what I saw). You get free shipping for order over $30, and you can get a tote bag of goodies valued at $100 for $30 with a $30 purchase. If you join their rewards program, which costs $10 for a year, you get 10% off this order and every order throughout the year (along with other perks). Don't forget to use Ebates, which currently has 10% cash back for The Body Shop.
Eco Tools is also have a 50% off sale with free shipping on every order. I love their brushes. I own almost all of them. I don't have their newest 6-piece Day to Night set, and a couple of those brushes looked interesting, so I caved. I added a couple of shower poufs to my order as well because I need to replace mine.
Other deals/info I want to share:
Silk Naturals Holiday Collection went live last week, and it looks gorgeous! Karen created a lot of really great new products and colors. I don't use a lot of loose shadows anymore, but I just couldn't resist picking up a few of the new ones. I'm also anxious to try their caffeinated lip balm. I'm a caffeine addict, so it'll be nice to get a boost without a can of soda. Through December 20, you can use the code GOBBLE12 to get 6% off your order. It isn't a huge discount, but Silk Naturals keeps their costs low to begin with (shadows are only $4 each), and they don't have sales often, so it's worth taking advantage of it.
Darling Girl Cosmetics is also having a nice sale right now. Copied from their Facebook page:
Tarte Cosmetics is having a 25% off sale. It looks like their Holiday collection is excluded, but sale items receive the discount. You get free shipping with a $40 purchase, and Tarte also includes a deluxe sized sample with every order.
Shameless plug: I also have a blog sale going on. Please check it out here. I just lowered some prices and added a few items. I'm willing to negotiate, especially if you are interested in multiple items.
I might end up adding to this post throughout the day. Please feel free to share any deals that you notice in the comments! Also please feel free to share what you picked up over the weekend or what you are ordering today to make me feel better about my over-spending lately. :-)