Must have been living under a rock because i just discovered the eatigo app and it's fast becoming a favorite. In case you're not familiar with the app and what it does - basically it is a restaurant reservation app that also offers good discounts at many popular restaurants. It's able to do so because they help restaurants maximize their utilization rate during the off-peak hours.
I think that's a fantastic idea. One of the problems that restaurants have is getting a steady flow of traffic during the hours between lunch and dinner as well as the supper crowd. By offering discounts to potential patrons who don't mind eating a little early or late, they're able to attract more patrons.
Of course, the key to their success is giving a good discount. Here's a screenshot of the discount available at one of my favorite Thai restaurants:
So, by going at 4 or 4:30 p.m., i get to enjoy 30 - 50 % off my food. Brilliant!