I sweep/vacuum mine as well. Plus I still have area throw rugs around....The yellow mats seem to be the worse to show dirt....Now mine aren't as bright as when I got them which was over 10 years ago, but I tell myself if I had carpet it would be the same way.....We have a concrete floor underneath so mats were our most economical way to put flooring. I do like the idea of the magic eraser, have never tried that..... We do have a lot of tracking because during holidays we have extra company and they stay in daycare so that just adds to possible dirt-tracking. 
I forgot to add, we got 4 thick clear plastic rolls at dollar store to put in the kitchen area and in front of door to protect the mats.....this works well.

I forgot to add, we got 4 thick clear plastic rolls at dollar store to put in the kitchen area and in front of door to protect the mats.....this works well.
Comment