Cleaning records. How often really?

Once I get a record, I clean it on my VPI, then run it through my DIY Ultrasonic cleaner. Once it's dry, it goes into a MoFi bag placed behind the record outer sleeve in a re-sealable poly bag. I don't clean them again after that unless they look dirty....which they never do. I tend to brush off each side after playing.

TL;DR....one and done.

I VPI mine once and then LAST them. Never clean them again,
unless they need it, but like Kgturner said, "they never
do". I do dry brush them before and after I play them
with an Audioquest or Decca brush.

I agree with both Mofimadness and Kgturner. One good clean and then anti-static brush before each play after that. If your records become so dirty after that which requires more cleaning by a RCM then the problem is with you and not your records.
Regards,