my mouse pads don't work anymore. None of them. They slide around on my desktop, The mouse laser doesn't seem to notice when I am moving the mouse around.

Got onto Amazon and ordered a lot of 10 pads. Works out to less than $3 each.

I bought one of these many years ago and I'm still using it. https://smile.amazon.com/...

a mousepad that has worked for some time. Though honestly, the main purpose seems to be to have a more "pleasant" experience as most of the time the mice work fine in terms of tracking on most surfaces (from my experience at least).