OrderCounter now supports customizable round-up buttons that greatly expedite the checkout process for cash payments by making smart suggestions for the most likely cash payment amounts based on the total due.
To implement this new feature, simply use the new round up options on the payment button configuration pages. We recommend using increments of $1, $5, $10, $20 and $50, but experiment with it and you may find you also want to add options for $15 and $40.