This is a Leatherman that is worth carrying around. With pliers, a serrated knife, a bottle opener, and interchangeable screwdriver heads it is useful everyday. It is the lightest Leatherman, and I no longer notice it in my pocket. From opening boxes, to fixing everyday objects (loose knobs, leaky faucet, etc) I buy them in 3 packs so that when I misplace one, I never have to go without.
I also got the bit expansion pack which gave me many other screwdriver heads and an extension, but find that I never use it – the large and small phillips and flat head that come with it are great. Get it here.