T-Mobile offers its T-Mobile SyncUP Drive for $48 with free shipping when you activate a 2GB data plan. It allows you to monitor your car's speed, location, and OBD-II engine codes, and also serves as a WiFi hotspot in your car.
REI offers the Big Agnes Round Mountain Inflatable Camping Pillow in Eggplant or Coffee for $19.73. Opt for in-store pickup to dodge the $5.99 shipping charge. That's the lowest price we could find by $8. It features elastic nylon fabric and a stash pouch.