The term 'wheeled convenience' can be summarized as a CART, which is a four-letter word. A CART is a vehicle with four wheels that is used to transport goods or materials from one place to another. It is often used in shopping centers, airports, and other public places to make it easier for people to carry their belongings. Carts are also used in warehouses and factories to move heavy items around. They are a convenient way to transport items and can be pushed or pulled by hand.