I recommend CCleaner (https://www.piriform.com/products). I’ve been running it for years. It’s available for Windows and Macs. I use the free version - there are no ads and it doesn’t nag you.
It's a good one. I use an ad blocker, and I can't recall seeing a Hillary ad. . . LOL!
Question from a Luddite: apparently I have CCleaner loaded on my desktop. I have a ton of sites bookmarked as favorites including FR. If I run the cleaner will I lose all the bookmarked sites and have to reload them again?
Timely topic. Did some maintenance just this morning - disk cleaner, defrag, CCleaner, Malwarebytes (annoying double pop ups from them and invariably during game time) and Avira.