Disclosed herein are apparatus and methods for collecting and utilizing product consumption cycle information from product purchasers. In one example a method comprises, responsive to a purchase of a product by a purchaser, selecting an end of use criteria for the product from a plurality of end of use criteria, determining a length of a consumption cycle of the product based on the end of use criteria, recording information identifying the purchaser, the product, and the length of the consumption cycle in an electronic database, and contacting the purchaser proximate expiration of the consumption cycle.