I accomplished the coupon code functionality. Very simple.
How can I list on the cart.php page the exact PromoCode the customer is getting? Which I guess needs to cascade through to the final checkout-confirm and also the email confirmation page.
SessionVariable: (Rule #1) -$5.30
SessionVariable: (Rule #2) -$5.00
I'm using two rules based on the Session Variable.
Rule #1 - Promotional Discount - 25% off
Rule #2 - Free Shipping - Flat Rate Discount
Everything works great. I just need to display (broken down) what discounts the customer is getting.