I love Gilt. They have great deals on designer items. I've never bought anything for myself, but maybe someday. (Or, maybe today. I just saw they have J Brand jeans.) I have bought some super cute stuff for the girly, though.
Right now they are featuring Marie Chantal clothing for children. I am in LOVE with this brand and, if I could, I'd buy every single item. If you want to know what my style is baby-wise this is most definitely it.
If you haven't joined Gilt you can get an invitation here.