Warranties are tricky: you eternally wonder if you're a sucker for buying one, and once you've got the card...what the hell's a stamp? End the miserable confusion, with GreenUmbrella
Green'll give you a one-price, 3-year extended service plan on just about every sub-$5,000 household item: TVs, computers, large/small appliances, MP3 players, and stereos, all the way down to alarm clocks, electric toothbrushes, and juicers, though warrantying those'd defy Jack LaLanne's instructions to "stare it down 'til it works". To get started, sign up for their $9.95/month plan, then online register anything bought over the previous 60 days (items must have an existing one-year manufacturer's warranty); after that, whenever you buy more crap, just register it within 30 days of purchase -- do it before day 29, and pat yourself on the back for being an adult. When any registered item goes on the fritz, call Green and they'll rally their nationwide network of 25,000+ repair professionals, who'll swing in for bigger "In-Home" items, or have you bring in "Carry-Ins", saving you from having to make fresh lemonade for burly men in back supporters.
Although registering stuff doesn't require receipts, Green still recommends you hold onto them; it also makes clear that, like most warranties, it doesn't cover any "accidental damage", meaning you'll have to get tricky yourself and figure out a way to "damage it on purpose".