You would be hard pressed to find any person who has visited a grocery store or movie theater that has not been asked to donate an additional dollar for charity on top of their purchase.  It’s become a widely accepted, near expected, practice in contemporary consumer culture.  Capitalizing on existing buyer behavior is not just easy- it’s smart.  However, the model has advanced far beyond adding a few dollars onto a popcorn purchase at the cinema.  It has emerged as a way for organizations to capture financially strapped young donors, and generate creative revenue streams as traditional philanthropic avenues face increased competition.