For many people in Paris, owning a car is neither necessary nor desirable. Transit service is good and parking is difficult. But that means that when your groceries include, say, containers of milk or orange juice, bottles of wine or San Pellegrino (San Pé to the Parisians), cans of soup or cassoulet, or jars of jam or tomato sauce, the walk home can feel very long. So do your arms.
What you need is a bundle buggy (a.k.a. chariot de courses, sac à roulettes or caddie). Fill it up and wheel it home. We decided to get one for our daily shopping trips. But first, some market research. This meant looking at what other people were using, and checking out the shops.