The best thing about using coupons at Walgreens is 1)getting back Register Rewards and 2) being able to use these Register Rewards at Harris Teeter! I stopped by there today to get some razors and was not happy when the cashier could not tell me my subtotal when I asked.  She said, “the register doesn’t show it until the transaction is finalized.” What? Really?!?  I had to get managerial confirmation on this tidbit of info and IT WAS TRUE! I’m still confounded by this…