Amazon.com

I think that the "one-click shopping!" selling scheme for Amazon.com really does increase business. It just doesn't feel like you're paying money to buy a really wonderful (and sometimes really expensive) product when all you have to do is left click. I just bought Startopia and Creatures, two simulation games from my past, for less than ten dollars each. And if I had REALLY wanted to, I could have bought Creatures 2, selling for $0.01. That's just amazing. I must've paid $15 for it when it was new, and now it's selling for a penny? Simply mind-blowing.