Coupons. MICHAEL TODD periodically offers promotions in the form of coupons good for trade discounts on website. The coupon contains a list of numbers and/or letters which are entered in a box marked “Discount Codes” on the Shopping Cart page during the checkout process. To redeem a discount coupon, enter the code in the coupon you received in the text box marked “Discount Codes” on the Shopping Cart page during the checkout process. Then click on “Apply Coupon.“ A text block will appear at the top of the page confirming the coupon has been accepted.That's all there is to it.