Logitech mk750 Solar Keyboard & Marathon Mouse Combo $60
Costco B&M is selling Item 698500 Logitech mk750 Wireless Solar Keyboard and Marathon Mouse Combo for $79.99 - $20 Instant Coupon = $59.99 plus tax. Great little deal!
Coupon is automatic at check-out (no printed coupon required).
This does not appear to be available on the Costco web site, only in store. See picture for the box and receipt.