akmac - 8:07 pm on Dec 23, 2009 (gmt 0) BUT WAIT, there's more! Meh.
Offering discounts is fine, but trying to snag someone with a discount as they're leaving seems desperate. Especially considering that many people don't complete the transaction on their first visit-you'd be needlessly discounting sales that you would've otherwise had at full price.
BUT WAIT, there's more! Meh.