My favorite retail promotion

Saks has been doing this great "Spend Some, Get Some" promotion for a couple of years now. It's a clever way to use what's basically a discount to encourage loyalty. Not only do they drive customers into the store or to the site on these select Thursdays to buy, but they also ensure they will come back again by providing the discount in the form of a gift card for a future purchase or to give to a friend. Brilliant!