Here are the best five things I've purchased on the Internet (non-referral links so you know I'm telling the truth):
Odormute. Magically good odor neutralizer. Far superior to febreeze, and much cheaper.
503TORCH. Small, cheap, effective butane lighter. You need a butane lighter.
Zojirushi Travel Mug. Nondescript travel mug that doesn't leak, ever.
Makita Vacuum. Replaced my old vacuum, roomba, and broom.
Good Grips Tea Ball. Makes tea. Tea is awesome.