Made my first trip to Costco yesterday. I could get addicted to that place, if I had a big enough house to store 72 rolls of toilet paper at once, that is :) Still, I did buy 3200 post-its. (well, they're the little tiny note size & I have small kids in my house, so they're always vanishing - 32 packs of 100 seemed like a good idea, and they aren't big, so no problem getting them in my suitcase...). My friend Yvette says that she's always seeing stuff she didn't know she needed until she got to Costco and then "Oh my god, I must have that".