The Coupon Filters plugin for Clipper WordPress coupon theme will allow your users to filter coupons/deals on your taxonomy pages (stores, categories and tags) by another taxonomy (coupon type, categories or stores) via a sidebar widget.
The plugin will create an extra widget that can be placed in the “Store Sidebar” and “Coupon Sidebar” which will show a list of terms (example: Coupon Code, Promotion, Printable Coupon) within the selected taxonomy (example: Coupon Type) with checkboxes next to their names, and your users will be able to narrow down the coupon results by one or more terms.
The default filter taxonomy is “Coupon Type” since many major coupon sites like RetailMeNot, CouponDunia and Coupons.com, but you can choose to filter by “Coupon Category” like on the popular GrabOn site or “Stores” as well. Now is your chance to get closer to those bigwigs in the business!
Note: The widget will only appear if the filter taxonomy is different from the main taxonomy on the page. So a category filter widget, will not appear on the category page, and likewise for stores.