Check Mate

If you are under the age of 80, you have absolutely no business writing a check at the grocery store.  And for heaven's sake, don't start pulling your checkbook out of your pocketbook AFTER the clerk tells you the amount of your groceries, so you can then start filling out  your check in old English scroll with your quill pen at the most inopportune time. 

If you can use a Brookshire's card to save money, you can use a similar such card to save you some time.