I am big on knife maintenance. Those getting used and carried on a regular basis need some TLC from time to time. My Huntsman sees the most carry and on occasion I like to scrub it thoroughly with warm soapy water and a soft bristled toothbrush. After rinsing in hot water, I dry it and shake it out as much as possible and I place it on a counter in the house that has a vent blowing on it. Once dry, I oil the joints (usually with foodsafe Inox) and use a pipe cleaner to lightly oil all the metal surfaces. Wipe it dry and it is ready to carry again.
Over the years I have seen some knives that never get cleaned and some of the blades cannot even be opened. One night I was going through my ritual with a few of the knives in my carry rotation and a buddy said, "that is why your knives will last forever." Yep, that is the goal.
Another advantage is that I find it kind of methodical and relaxing. If anyone here is a sword person (real hand forged swords, not stainless late-night fantasy swords) then you know that regular maintenance is very important. Being able to maintain a forged blade with a mirror finish and no swirl marks is a point of pride with swordsmen and collectors.