Don't Wait Until the Last Minute

Here I am sitting trying to come up with my shopping strategy for today.  I am checking the shopping lists I put together to see what I need to buy today.  Why is it so important to go out today and not tomorrow for the items?  Some of the coupons expire today.  That's right, I am waiting until the day they expire to use them.  However, that is not such a wise thing to do. I run the risk of the store being out of stock and then I have to decide if I want to forget the item or head to another of that chain.  If possible don't wait until the day the coupon is expiring to use it.