As one of its daily deals, Amazon offers Prime members the Microsoft Sculpt Ergonomic Wireless Mouse, model no. L6V-00001, for $25.60 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $8.48.) That's the lowest total price we could find by $7. It features seven buttons, a four-way scroll wheel, 1,000 dpi movement resolution, and wireless range of 10 feet. It requires two AA batteries (included). Deal ends today.