Quandary

So it's 7:35 and I'm too tired to go to Dan's and watch a movie because I just had a killer workout. But I also have a 40% off Half Price Books coupon that's good TODAY ONLY and it's less than 2 miles to the nearest Half Price Books. It should be noted that I also rented 2 movies which I have yet to watch, and that I stink, and that I have a 50% coupon good on Sunday only, and that I really don't have much extra money to spend.
But it's 40% off!!!!
What to do...