Newegg offers the Timbuk2 Slide 15" MacBook Backpack in Black/Bixi Red, model no. 431-3-6048, for $30. Coupon code "0315MARCHAGE158" cuts it to $15. With free shipping, that's $64 off list, $13 under our October mention, and the best price we've seen. Designed specifically for the 15" MacBook Pro, it should also accommodate most 16" laptops. It features an internal organizer, weatherproof port for headphones, and custom-fit strap. Deal ends March 19.