The newly bought trouser legs are long; The hem of the clothes is too fat; The zipper of the quilt cover is broken, and so on. Our first task is to take it to a shop that specializes in sewing and changing clothes. It can be said that this kind of storefront has the least investment and high profit. Basically, changing the length of trousers is generally 3- 10, and the cost is less than 50 cents. Setting this type of store in conspicuous places around some big clothing shopping malls may make thousands of profits every day.