For customers who pay with a Discover Card, Amazon
offers free 1-day shipping
on a huge selection of items
via coupon code "DISCOVER". (Be sure to select One-Day Shipping before entering the coupon.) That's tied with our November mention as the best such shipping deal we've seen from Amazon. (Even for Prime members, it's a savings of $4 per item.) Eligible items include video games, video game consoles, DVDs, Blu-rays, home theater accessories, Kindle accessories and devices, fishing and outdoor gear, and more. Coupon expires March 31.