SANDPAPER!  at some point, we all end up using it, and for the times when using a power tool is too much, and a sponge just wont do it. you’re gonna wanna use sheets of it,

one of the worst things about using paper is sometimes it may fold, or bend or ripped or feel worn out, but whats really happening is the paper is losing its integrity while the grit is just fine.

heres a quick and easy fix to that

All you’ll need is a roll of duct tape and sandpaper.   if your piece is frayed. just cut it clean so you start with nide edges, its best to do this before you start using the paper.
next is all you gotta do is add the duct tape to the back, cut it square and write the grit on the back so each square you cut you can read what it is