While supplies last, the Garmin Vivofit Fitness Band drops from $69.99 to $39 at Verizon Wireless. Plus, the shipping is free. This is the best price we could find for this fully waterproof activity tracker by $11. The Vivofit tracks your calories burned, monitors your sleep and counts your steps. Plus, it has a one-year battery life, one-touch wireless syncing with it's accompanying smartphone app, and an inactivity monitor that will send reminder notifications after an hour of no activity. Sales tax is charged in most states.