However, in the instance that a customer finds a better price within a certain
period of time after purchase, the company will honor that price and generally throw in a
discount or perk.
Signing up for e-newsletters is also the best way to access increasingly popular «flash» sales, whereby a retailer offers steep
discounts on a small range
of items — say Calvin Klein shirts for $ 20 — for extremely short
periods of time, often no more than an hour or two at lunchtime or
after work.