Whether it’s for grocery runs, trips to the laundromat, or simply lugging your belongings from Point A to Point B, any city-dweller can easily go on about the joy that is having a folding shopping cart at your disposal. While affectionately known by many as “granny carts,” all it takes is a couple of schleps to and from the store with an armload of groceries to realize the necessity and practicality of these carts.