How Much?

People ask me several times a day "how much is this?" I usually say "I don't know, let me check the price tag." I point out the price and about 25 seconds later they ask me again "how much is this?" Granted, sometimes the price tags fall off but still, it is on the tag, or on a sign somewhere near that item. How do they deal with shopping at Wal-Mart where nothing is tagged, the employees have no clue about how much it costs, and everything is done with signs?