I am really impressed with how well these old albums sound after a good cleaning

I just pour the bottle cap about halfway and pour it on different sections of the record, and then take and clean the album in the same manner as before

Goodwill finds sound almost as good as my brand new $50 albums now (limited edition Pokemon and Banjo-Kazooie soundtracks -- only reason I spent $50 on an album) -- with the exception of the few pops and crackles that are clearly caused by the scratches and other imperfections created by the previous owners

It is made for the Spin Clean album cleaning system, but it also works on its own.