Daily Steals offers the PharMeDoc Anti-Fatigue Mat for $24.99. Coupon code "DSMAT" drops that to $18.99. With free shipping, that's teh lowest price we could find by $6. It measures 30" x 18" x 0.75".
Believe it or not, there are lots of things Uncle Sam can't touch — so long as you play by the rules.