Article in English: The easiest way to earn extra money is to get a part-time job to supplement your income. Even if you only work a few hours a day or a week, a part-time job can make a big difference in your bank account. Here are some examples of part-time jobs you could do:   Deliver pizza. If you have a reliable car and are a good driver, you can make extra money by delivering pizza. You won't make a lot of money by the hour for delivering pizza, but you can earn extra cash in tips.  Wait tables. Working in the service industry is a good way to gain experience, interact with customers, and get tips. Be a bartender. Some venues allow bartenders to be new to bar tending, or accept applications from anyone over 18. Not all bars require experience or require for you to be over 21, so it's worth checking out! Plus, in large venues where the bar isn't the main attraction, the work is laid-back, if not a little boring.   Deliver papers or phone books. Delivering papers or phone books isn't just for teenagers. Anyone can do this to make a little money and get to know his neighborhood in the process. Be a personal shopper. Find a person who is low on time, or who has difficulty leaving the house, and offer to do his/her grocery shopping or run errands for them. Check out the part-time jobs listed on craigslist or reputable websites that are specifically tailored for people who are looking for part-time jobs. Getting a random part-time job can be fun, but if you can get a job that allows you to make use of your skills, then you may be able to earn a bit more money than you would during an ordinary part-time job and to build your resume in the process.   Teach. If you're an expert in a certain subject, see if the community, local colleges, or even the private high schools in your area are looking for a teacher in your field. If you can pick up just one night class per week, it can make a difference in your income. Though you'll need certification to be a traditional teacher most of the time, to teach part-time you may only need a...

Summary in Chinese:
找一份兼职。 销售你的知识或者才能来赚钱。 做看管人。 从你目前的工作获得更多的钱。 网上赚钱。