Utility knives rock. My favorite use: Instantly defeating tougher-than-depleted-uranium clamshell packaging without hurting myself. Any utility knife’ll help, but if you use one more than casually, you eventually have to deal with the nastiness of swapping a blade.
Wiss recently released a new knife with a “quick change” system to simplify the process.
It works like this: You press and slide a release button on the side of the knife near the front — you can see it in the pictures — and the blade releases to be pulled right out the front of the knife. You insert a new blade right in the slot (without opening the knife like you do with others), release the button, and slide the blade in to lock it into place.
It sounds a lot easier than opening the knife with a screwdriver (like you do with cheap ones), but is it that much easier than, say, Irwin’s knife that opens with a release catch?
Street pricing starts around $7.