The knife that I have carried the most for the past two years has been the Boker Trance. For the most part it has been my EDC. Every now and then I rotate it out for a new knife to test before carrying it in my store, but I always go back to the Trance. I try not to baby the Trance but I do not do non knife taks with it, such tightening a loose screw or cutting through a car door. The worse abuse it saw was a week long camping trip summer. It was hot, humid, rainy and the mosiquitos were the size of Cesnas and as mean as Rosie O'Donnel when she runs out of ice cream. Overall I have been extremely impressed as to how the knife has held up, especially for a $30 or less knife. I have had to sharpen it a few times but it easily takes and edge. About a month or two ago I notice some blade play. I tightened to screws on the scales and I was all set. The only other knife that has been my EDC this long (besides a SAK) was a Spyderco Delica. I still have the Delica and carry it occasionally but the Trance is more comfortable to hold and I love the flipper. What knife have you carried the longest and how's it holding up?