Abstract: The present inventors identified that conventional packaging of trashcan liners makes it difficult for consumers to know when their supply of trashcan liners is about to run out. Accordingly, they devised, among other things, a sequence of plastic trashcan liners within a container that includes one or more indicators that the sequence of liners is approaching its end. In some embodiments, the indicators are associated with promotional devices, such as coupons or other forms of advertising content, thereby allowing advertisers or sponsors to temporally couple an actual need of the consumer to shop at local retailer with a geographically or functionally related product promotion.