REI members can take 20% off a full priced order of one full priced item or 20% off one eligible outlet item at REI.com via code MEM2013 through 4/7. This beats the best sitewide offer we've seen from them, which was $20 off $100 for members. Lifetime membership is $20, so if you spend $100 or more, you're essentially getting it for free. Membership gets you 10% back on all of your REI purchases (paid out every March). This offer is rare because the exclusions are limited mostly to equipment and services rather than typically excluded brands and products. Sign up and learn more about membership here. Editor's note: I got this a few years ago and I feel like a bad deal getter for not having the membership earlier in life. Sales tax is charged in most states.