this question probably has the simplest answer ever, but i cannot think of a solution at all. I have a client, that needs the cart set up so that if a client gets a dollar discount for every 20 things the purchase. So he sells pamphlets for like 50 cents, and for every 20 they purchase (of one product) they get a dollar off of that 20. But if they purchase 23, they get a dollar off of that 20 but the extra 3 they purchased it is regular price. Right now it is set up as 2 differnt products so you can either order the 20 pack or order the singles. Any suggestions? Thanks!