A bag is used to carry anything like a lady carry a bag to carry wallet, mobile, keys, cosmetics, money etc. A man carries a bag to carry laptop, important files and stationary etc. Different bags are designed for different purposes. Different types of bags are shopping bags, laptop bags, school bags, ladies bag, camera bag, pharmacy bags, garment bag, food bags etc. Every bag is used for its own purpose. Shopping bag is used for carrying shopping items, food bag is used to carry food items, laptop bag is used to carry laptop and office files, school bag is used by kids to carry school books etc.