[tortilla]

Look into a standing floor mat like this: http://www.amazon.com/Sublime-Imprint-Anti-Fatigue-Comfort-N...

[zach]

I've used this larger (3' x 5') one for over a year, usually with shoes but more recently in socks, and it's been great. It looks like the one in first picture but gray and only slightly glossy. Recommended.

http://www.amazon.com/gp/product/B001E6CURU