Amazon has the Dr. Scholl’s Comfort Air-Pillo Insoles (Size Men's 7 - 13 / Women's 5-10) for $2.79 - 20% off coupon (check "Save an extra" box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel anytime) = $2.09 with free shipping on $35+ or with Prime.