I don't usually get too excited about shiny, flashy stuff on shopping sites. Most of the time it's just standing between me and whatever I'm trying to buy. But the Uniqlo Explorer feature on Uniqlo's U.S. site is pretty amazing. I love the endless, ever-changing loop of choosing a square, looking at the item and then clicking it again to watch it pixelate back into hundreds of tiny squares (each representing a piece in Uniqlo's massive collection). I could spend all day playing with that. But I've already found about 25 more t-shirts that I absolutely need, so maybe that's a bad idea.