Swapping blades on a utility knife can be tedious, and with some models you'll even need a screwdriver. DeWalt’s new Folding Auto-Load Knife makes the process simple and fast. To change blades, press a button at the nose of the tool and pull out the damaged blade, then pull the thumb slide back into the tool. This sets a new blade into the cartridge. When the thumb slide is extended again, the new blade comes with it. The DeWalt is big enough for use with a gloved hand, but it folds up for storage, making it much smaller and eliminating the chance of a blade being exposed while the tool is in your pocket. The knife holds three extra blades. Price: $15 / COO: China / dewalt.com