How often to you clean vinyl and the needle?

Those vibration based cleaners do work nicely, but they are not "ultrasonic".  The ones I know about, sold under the Audioquest brand and maybe some others, vibrate at around 500Hz.  That's why you can hear it.  I have the Audioquest version but use it rarely.

I wonder how many of us who rarely clean their styli ever look at the stylus under high magnification after long term use. If you did you’d be motivated to clean the stylus every few sides. I routinely use Magic Eraser but to be really thorough I use a liquid solution and a tiny brush .