I am old and retired, and find the best thing is to have "good shoes" on . K Cooper mentions being barefoot alot , I find my back will start screaming . Even slippers is a problem . I could do it years ago , not now .
I have 30” x 60” pads, once made by Craftsman and sold at Sears, at my 3 main work stations. The rest is concrete and 90% of my work is done bare footed. Not a good thing as my wife says my feet feel like sand paper. May have to start wearing socks to bed?