Muffin Madness

     I went to the supermarket, several miles from my neighborhood store, because of their advertised "Meat Week" specials.  On my way to the meat counter, I noticed a number of items on display  in the Buy One, Get One section of the store.  I picked up 2 packages of Thomas'  English Muffins, as we do use them from time to time.  I finished my shopping and checked out, returned home, and put the groceries away.  In short order, Dave got home with his purchases from Walmart's, where he goes to get his Entenmann's cake; he had also bought a package of Thomas' English Muffins.  Curious, I looked at the receipt; Walmart's  price was $2.00.  I checked my supermarket receipt and found I was charged $4.19 for each package, a total of $8.38---no free one.  So I looked at the store ad, and saw the offer was Buy One, Get Two free. 
   Normally, I must admit, I don't check my grocery store receipts, and on the few occasions I've noticed a mistake, have not reported it.  I figure once you leave the store, you're on your own, and it's too much trouble anyway to drive back for a correction.  But this time the price discrepancy seemed too egregious:  I paid $8.38 for 2 packages, when the advertised value was $4.19 for 3 packages.  As I happened to be driving by the supermarket, and I'd kept the receipt in my purse "just in case,"  I went to the courtesy desk, and as soon as I started to state the issue, the clerk said she'd refund my $4.18, and told me to pick up another package of the muffins.  She didn't even look at my receipt, or take any information at all.  So she gave me the cash, and I just picked up a package of muffins as I left the store.  No problem, except I now have 4 packages of English Muffins in my house.  Anybody in the mood for an English muffin can stop by. 
     As a side thought, Walmart's price for 3 packages of the muffins is $6.00.  So the supermarket's ballyhooed promo of 2 free packages with the purchase of 1 is only a savings of $2.38.  Big deal.