| Field | Shops |
| Went Obsolete | 1998 |
| Made Obsolete By | Scan-codes and RFID |
| Knowledge Assumed | REading? price-tags |
| When useful | Then customers were shopping. This also included actually putting price tags on all the items for sale and replacing them each time the price changed! |
Still used widely by small businesses.
A UK company. 'Kwik-Save' now extinct, expected their checkout operators to know the price of all the goods for sale. The only price was above the stock in the store, nothing on the item!