For those of you who frequent Amazon.com for everything from books to food... Are you aware of Amazon's 30-day price drop refund policy? Buy something today, and if the price drops in the next month, you can get a refund for the difference. But the catch is that you have to request the refund. Who knew? I sure didn't.

To make the job of discovering such refund opportunities, there's the PriceDrop Firefox plugin. You can also use it to track those looking-for-a-bargain items.