Cleaning a mat

[muck_a_luck]

My mat has never been cleaned. Ever. It is starting to smell a little bit like feet. I guess that's what comes of six or so years of sweating.

Thoughts about how best to clean it? Do I need a special mat cleaner soap - to preserve stickiness or whatnot? Or do I just want one, because they smell better?

I have a cheap purple sticky-mat mat from Walmart.