Yes, we know you’ve already bought a small handful of discounted PS3 games over the past few days, but if you have any dollars left over in your checking account, you should check out Amazon’s current Deal of the Day. This time around, it’s the PS3 version of Final Fantasy XIII, which is temporarily available for $36.99. If you’ve got the cash (and, well, the time) to invest in Square Enix’s slow-starting RPG, this is probably the best deal you’re going to see on it for a long, long time.