REI has a $20 off $100 coupon for both in-store and online. This is relatively rare for REI. For in-store use, print this coupon and take with you. For online purchase, use code HOLIDAY8. It works on already-discounted items too. If you are buying a single item at its outlet store that is over $100, use code OUTLET20 to take 20% off instead for an even bigger discount.