A while back, I was making a fabric covered photo album. It involved the use of spray adhesive. The overspray caused this lovely speckling on my mat, which attracted lint from the black fabric I was using. I immediately grabbed my goo gone, but it was taking off the ink on the mat as well. So, that was out.
So, I was left with a mat that looks like that. Not so pretty, but at least it wasn't tacky.
As I was perusing the internet tonight, I stumbled upon a "recipe" for a homemade gunk remover. It seemed almost too simple to work, but it was worth a shot. I had the ingredients on hand, so I thought I'd give it a try. It worked like a charm!
Finally, a clean mat. It also took a couple of old stickers off of a table. This stuff is amazing!