First: I personally think that the most cost-effective part-time job for college students in winter vacation is tutoring. You don't have to get up early and go to work on time, and you don't have to go to work all day. Maybe you can teach junior or senior high school students three or four hours a day. The rest of the time can also enrich themselves. In fact, there are many tutors online, and some can even teach online without going out in cold weather.

Second: actually, I think it's good to go to some local libraries or banks, that is, even if I can learn some knowledge, I won't meet the boss who squeezes the labor force. I have a friend who helps with some simple business in the bank, not only making money, but also learning some financial knowledge, which is of great help to your future financial loans.

Third: some online part-time jobs, but be careful of fraud, or believe that there will be no pie in the sky.

Beware of fraud! ! !

Finally, in fact, I don't recommend college students, especially female college students, to do some errands, hand out leaflets, or assembly line work, which won't help them much and, to be honest, won't make much money. Of course, if they really want to do it, that would be great. After all, everyone who can achieve economic independence and make money by their own efforts is worthy of respect. I hope my answer can help you.