I love my Leatherman, and I would carry it in my pocket all the time if it didn't feel like a lead brick was trying to pants me every time I took a step. Given that gravity is, for the most part, unavoidable, I have been searching for a slim, lightweight knife I could keep in my pocket on an everyday basis.
Over the past year I picked up a Kershaw Vapor II that weighed 4.5-oz and a CRKT M16-10KZ 3-inch folding knife that weighed almost the same. Both were too bulky, and even at around 4.5-oz too heavy (not to mention I abhorred both locking mechanisms). After a while I started carrying around a disposable utility knife, but after nearly cutting myself for the third or fourth time I was ready to call it quits. That's why I was thrilled when I heard about the Baladeo 22g and 34g knives on Backpacking Light.
Baladeo 34g Knife
4.5-inch blade
$32
Available from Amazon
Baladeo 22g Knife