Link Safe

Prices on Amazon are constantly fluctuating, which means a product you buy today may be several pounds cheaper tomorrow. The best way to keep on top of these changes is to track price drops using CamelCamelCamel (camelcamelcamel.com) the odd name refers to the hump-shaped graphs the site uses to depict price rises and drops. Search for an item you'd like to buy, or copy and paste its Amazon URL, and CamelCamelCamel will produce a price-history chart that lets you see if the current cost is cheaper or dearer than one month, six months or one year ago. Tell the site how much you're willing to pay for the item, and CamelCamelCamel will monitor its price and alert you via email or tweet as soon as it drops to or below your desired amount. CamelCamelCamel also lets you import your Amazon wishlist to create automatic price watches for products you'd like to buy, and also lists the biggest price drops in each Amazon department over the last week, so you never miss out on a bargain.

If you don't have time to visit the CamelCamelCamel website, you can install its add-on for Chrome and Firefox, called The Camelizer (camelcamelcamel.com/camelizer). Just click its toolbar button when you're viewing a product page to see a price-history graph, which also includes data for third-party sellers, and to create a price watch for that item.