Walmart offers the Tzumi 2-in-1 Wireless Qi Charging Mouse Pad with Rechargeable Wireless Mouse for $10. Opt for in-store pickup to avoid the $5.99 shipping fee. That's tied with our mention from last month and the lowest price we could find by a buck. The pad can be used as a wireless charging phone stand for all Qi-enabled devices, and it includes a USB charging cable for the mouse.