Logitech offers its Logitech G502 Proteus Core Tunable Gaming Mouse, model no. 910-004074, for $39.99 with free shipping via the directions below. That's the lowest outright price we've seen, and a current price low by $18. (We saw it with a $40 Steam credit for $80 last month.) It features five DPI settings, adjustable weight, center of balance and placement of weights, and 11 programmable buttons. Deal ends August 31. To get this deal:

1. Click here and select "Work Hard" or "Play Hard" and complete the following form to receive a unique coupon code
2. add the Logitech G502 Proteus Core Tunable Gaming Mouse to your cart for $59.99
3. apply your unique coupon code to drop it to $39.99
4. click here to bag free shipping