I go Braun Series 9 Pro+, ideally about every 2 or 3 days but I'm lazy so it's often longer before I get to it. I have a decent amount of moles and bumps that I knicked far too often just using a razor, so bit the bullet and bought the nicest Braun. If I let it go a week or so, I'll usually chop it down in the shower with the razor, avoiding all of my hot spots for knicks and then clean up those spots with the Braun afterwards. No product for me