This is an excellent question.  I tend to clean my records just one time.  And that one single time is often right when I purchase the actual record. If the record ever becomes significant dirty for some reason, I’ll clean it again.  But after that initial clean, I find I really can get by with wiping the dust off the surface of the record with a carbon fiber brush right before I play an album.  In fact, going forward, I’d focus more on keeping your stylus clean than the surface of your record.