Lush is an addiction, and if you fall prey to it, you'll suddenly think that $10 for a bar of soap is a perfectly normal thing to deal with. Their stuff is high-quality, highly-scented, and ridiculously good. All their products are vegetarian and never tested on animals, and they clearly mark which products are OK for vegans - a rarity in the cosmetics business.
The bath ballistics - you might know them as "fizzy balls" or "bath fizzies" - that Lush sells are the highest quality out there and will doubtless make you the epitome of your own bath goddess lounge fun time. Definitely make a trip to this store - parking's awful, the Metro is far away, and you'll have to lug heavy bags down a busy street - but it is SO WORTH IT.