Groupon offers the Contigo Autoseal West Loop Stainless Steel Travel Mug 2-Pack in Lilac or Silver for $24.99. Coupon code "HOME10" cuts it to $22.49. With free shipping, that's $3 below our May mention, $11.25 each, and the lowest total price we've seen for this quantity. (It's a current low by $8.) These vacuum-insulated mugs feature a 16-oz. capacity and retains heat for up to four hours and cold for up to 12 hours. Coupon expires August 10.