Has anyone done this!!!!

[striegel]

No, it never occurred to me to try that. I have mostly relied on turning them over and using compressed air to drive out the accumulated crumbs.

Micro Center sells a product labeled as Green Clean by Car Vibez as a material for grabbing the loose hair, dust, and crumbs but it doesn't pick out the deeper material and the crusted-on stuff.

It's a green-tinted kind of gel/putty that tends to stick to my fingers a little too well. In use, I grab an amount about the size of a AA cell and roll it over the keyboard until I'm satisfied then discard that part. It seems pointless to try re-using it once it has been polluted.

BTW, it does a nice job of cleaning the mouse pad too.

Alan