Once you get your knife sharp it doesn't take much to keep it that way.
I have a Tormek T-7 water cooled sharpener for my planer and jointer blades. It's also good for chisels and scissors and knives.
I have a couple of Arkansas stones that I use to touch up my knife blades. Just a couple of passes on each side and the blade is razor sharp again. The bottom one is super fine.
