Promo Code: Bulk Discount for Purchasing from a Series SD484
As a site visitor let me use a promo code to get a bulk discount when I purchase a bunch of items from the same series (e.g. books in the Day Hiking series or backpacking courses/clinics). So we define "series" as any group (or bundle) of items of any kind (books, courses, etc.) that have to be in the cart for the discount to be applied.
Please see the IT Planning & Prioritization sheet, https://docs.google.com/spreadsheets/d/1x1_tMuGpZZC4-xxyiDTzALvnbSPn2SJz3FveQQuyfmY/edit?usp=sharing, for where this project is ranked among other projects.