Buy 1 get 1 at 20% off, thus netting out to 10% off the full amount. Additional 5% off on the balance for Red Card holders.

Available in denominations of $ 15, $ 25, $ 50, $ 100 so you’d have to buy 2X of that to get the discount as it is applied to the 2nd item.

PS: Not as great as the 20% I know, but 14.5% is better than nothing.