Free shipping on amazon.com is often a great deal if you buy enough items. With a requirement that your basket has to reach a certain price before qualifying can leave the consumer frustrated when you come up a little short.

Now there's an easy way to solve that problem. Check out Amazon Filler Item Finder, an innovative tool that helps find every item Amazon sells, listed by price.

Just enter the amount you're short and you'll see a list of products that match the price, starting with the cheapest.

Find it here.

Thanks to Netted by the Webbys for this tip.