Good on you.
I say this as a (fairly alert) checkout monkey myself - it's hard to get past a) scanners and b) anyone paying attention on a till. These companies make millions upon millions. If you find a reliable, sly way to get one over on them do it. Do also remember that you can get caught.

As a representative of the supermarket "Man" my tip is this: reduced barcodes are on the products they refer to. Scan a barcode from a box of fruit, it will register as fruit - not as the bottle of champagne you've stuck it on. It is also unwise to tear packaging and demand a reduced price as it is usually obvious and someone else will buy it at full price, damaged or not. If you're that desperate for a bargain, ask when the last reductions are and come back then.
( Bats, Fri 18 Jun 2010, 16:59, Reply)