A grocery cart is a deeply personal space. It is a direct reflection of our lives, our habits, and our priorities. When you are standing in the checkout line, the person behind you can learn a surprising amount about you just by glancing at the items on the conveyor belt. Your grocery list, which is on full public display, can accidentally reveal some of the most intimate details of your life to a stranger. This can be an unsettling thought in our privacy-conscious world.
