3-5 times a day, but sometimes more; although sometimes that one time a day is it being used for an hour or several hours. It really depends on the tasks of the day. Having a folder designated for the kitchen to process packaging and to keep people from dulling kitchen knives on packaging, means a lot of regular knife use even if I'm not receiving shipping or cutting cardboard to make Frankenstein's box to fit outgoing shipping, or working outside in the yard. I also like to keep a long slicey knife on hand for processing things like cantaloupes for the chickens, after getting into a food for agriculture program with a local grocery store to snag things that they're going to toss and save me money on chicken chow. My new Opinel No.15 Slim has been handy for cutting small melons.
Having designated folders and fixed blades in work station mode, for every room and shed, means I use my knives more, but also that I'm not using improvised tools because there's no knife within reach. The less expensive folders and fixed blades are the ones used in work stations, except at my desk, which is more of an EDC staging area of around 20ish knives from my collection. The Ontario Rat1 currently rotated in as the kitchen folder is receiving rave reviews from my lady, compared to the Real Steel Luna Lite and the Ka-Bar Dozier that were previously in the kitchen.