Buy.com

Whenever I need to buy something, either personally or for my business, the first place I check for prices is Buy.com. Often they have the best price, charge no shipping, and charge no sales tax. With a few clicks of my mouse, I can save both money and the time that I would have spent going out to a store (to say nothing about the gas). If you apply for a Buy.com credit card, they sometimes give you cash back on your transaction (and then a percentage back on future purchases). What's not to like about that?