Be different in ways that are hard to duplicate.
That’s one of the key lessons to be learned from Groupon, the deal-of-the-day website that caught fire on the web a few years back.
Coupons are NOT right for every business. In fact, I advise against them unless you’re in a business where you can regularly afford to absorb loss leaders. But there are some who do opt for this route and in that sense, it’s worth looking at.