There is simply nothing WordPress can’t do, If you are working with regular HTML websites, I suggest you change to wordpress, You would be able to use this out of the box wordpress template couponpress, a Coupon wordpress theme. It takes minutes not hours to have your very own coupon website setup and running, the theme comes with 20 different themes for your coupons, a click and copy and click to reveal system, Users can interact and show whether the coupons work or not, import multiple coupons from all the leading affiliate networks like CJ, shareasale, Amazon, clickbank and much more, works with all browsers, Ad management system, you can even charge visitors to show there own coupons, unlimited installations and you get full documentation as well as support.
WordPress themes are slowly turning to new designs increasing flexibility and possibility. WPStore is suppose to be bigger then shopperpress with a range of features and options for selling tangible and digital goods online. Three different theme types from Shopping Mode, Digital Mode and Catalog Mode for different kinds of stores, fully manage products with descriptions and images, manage orders processing, shipping options with adding discounts and prices based on weight, a massive amount of payment gateways at the click of a button, manage and include tax, user registration, use coupon codes for added discounts, product size and colour features and others, A built in affiliate module to drive more and more sales, Search Engine Optimized, built in ad management and cross browser compatible.