I almost always check the sales first. I'm always afraid to try something out of my usual range, and a sale is generally the only thing that gets me to try something new. Especially the friends with benefits deals. I recently ordered the getaway luxe by Nomi Tang. The reviews were okay but I felt even if I didn't love it I wouldn't have wasted too much. Glad for the sale because I love it!
I always check my wishlists too just in case something there is part of a good sale. I don't just limit myself to sales items though.
I also do some random browsing for some smaller stuff.
I guess I do all 3 of these to gear up for an order. I'm trying to order more frequently now, so I spend less. Spending $100+ of my own money is tough sometimes.