(Update: That was quick, looks like they are sold out. Perhaps they will replenish later.)
If you have some American Express Membership Rewards points lying around, perhaps from the American Express Platinum or the AmEx Rewards Premier Gold, then is for you. Reader David reports that right now you can get a $25 Gap gift card for 1,250 points when you redeem by January 29, 2012, which is 50% less than the normal exchange rate for gift cards ($25 = 2500 points). Supplies are limited.
Even if you don’t like Gap clothes, PlasticJungle.com and others from my gift card sellback website comparison will give you up to $83 for a $100 Gap gift card. That works out to a value of 1.66 cents per point (10,000 points = $166), which is much better than any other direct cash-out option, although some people may be able to get better value by redeeming airline miles for award flights.