I have significant problems with arthritis in my feet, knees, ankles, hips so used something like this. http://www.rubberflooringinc.com/int...Fcpj7Aod2wMA5g Picked these up years ago at Sams or Home Depot, do not recall. Bought enough extra that I haven't needed to find them again as I have only had to replace a handful of tiles. Upshot is that you can actually find almost anything with a bright light on a black background and the interlocking seams are so tight, nothing can wedge into them. Also, damage can be replaced one tile at a time. Goes down very fast and eliminates that cold concrete feel as well as being very kind to my feet. Rebound distances on dropped small parts are also reduced compared to tile or concrete.