Cheapest item on Amazon: 35¢ hose clamp

I just ran across two sites today that are useful for bumping your Amazon total up to the $25 minimum for free shipping. Cheap fillers lists the cheapest items on the site, whereas Filler Item lets you search based on the price you need.

At some point, Amazon should just have a "round me up to $25" check box. I'd be inclined to check the box for a few dollars, especially if they donated that money to charity, or did something equally compelling with it.