REI offers its REI Lifetime Membership for $20. Add $100 or more worth of other merchandise to your cart to bag a $20 REI Gift Card for free via coupon code "JOINREI". Plus, all orders that qualify for this deal receive free shipping. Excluding the money you'll spend on other stuff, the gift card covers the cost of the membership. That's tied with our mention from last September as the best REI membership deal we've seen. REI members receive a 10% money-back annual dividend, exclusive deals, and discounts on trips and classes. Click here to learn more. Deal ends May 18.