Has anyone found a way to create a discount rule that can be applied multiple times? For example, we have a deal on all of our t-shirts that they are buy one, get one half off. With a discount rule applying the proper categories, the discount triggers fine. If we then create a second identical discount, and the customer adds 4 t-shirts to their cart, one of the shirts becomes free and the rest are full price (not ideal, but also not the end of the world). The problem is that there is no way to get the deal to trigger a third time. We don't want to discourage customers from placing larger orders, if they order 100 t-shirts, 50 of them should be 50% off.
Any ideas on how to do this?