I'd like to add a handling fee for orders unders a certain dollar value, maybe 25.00. I am figuring maybe 7% if an order is under 25.00 and 10% if an order is under 15.00 Anyone have any suggestions on how and what would be the best way to do this. I have ahandling fee added to shipping however it's a pain to have to refund/credit the amounts when and order is above the 25.00 Thanks Steve