If college students want to take a summer job, they'd better find a job related to their major, so that they can practice in advance and accumulate some experience. They shouldn't wash the dishes unless they have to. This has no other significance except to become cheap labor.

If you are a student of a famous school or a normal school, you can be a tutor and the salary is considerable. If you are a photography major, you can pick some models to take pictures or retouch pictures online. If you study languages, you can act as a translator or translate some manuscripts.