COUPONS.. Redeemable..
I didn't realize it, but these coupons are good for one gallon of gas at most retailers. I have seen them around, but until recently never took advantage of them. I never realized their actual worth.

You probably have one or two just lying around somewhere. Now is the time to use them before they lose their value, and it's too late!!
[h/t my friend Russ]