Ending today, Dell Home offers the Dell WM324 Wireless Optical Mouse, model no. YRM3N, for $14.99. Coupon code "ZD3FB5XS6S6SCW" cuts it to $13.49. With free shipping, that's $2 under our mention from three weeks ago and the lowest total price we could find by $15. It features Logitech unifying technology (manages up to six peripherals) and an ergonomic design.