At the stores that use paper pricetags still, before you buy anything expensive, just rifle through the other pieces of paper behind the pricetags. Sure, today

At the stores that use paper pricetags still, before you buy anything expensive, just rifle through the other pieces of paper behind the pricetags. Sure, today it says "30% off". Behind, though, are pages for 50% off, 40% off, and 65% off Then you know it isn't really on sale now.