GUNNAR Computer Eyewear takes 15% off sitewide, including prescription glasses, via coupon code "LOLWC15". That's only the second coupon we've ever seen from GUNNAR, which sells eyewear for use during computing and gaming. (We last saw 25% off sitewide in May.) Shipping starts at $6 (choose "Ground Delivery" during checkout), or get free shipping on orders of $99 or more before coupon. Deal ends October 6.