This document summarizes market research conducted for a shopping cart optimization project in Germany. Surveys were conducted with supermarket managers and customers to understand pain points and opportunities. The German shopping cart market is estimated at 70 million USD annually. Most managers and customers expressed frustration with long checkout lines and wanted improvements to cart design and functionality to make shopping easier. Common suggestions included reducing cart weight and width, improving wheels, and adding features like a phone holder or shopping list organizer. The research indicates customer demands could influence stores to update outdated cart systems.