While being a student you may not have the "little-bit-more" of money that you might want for a whole lot of things. The only way out would be to have a sponsor who will take care of all your needs, in which case you will have to be under someone else's credit, or you could just make some money on your own.
Here are 5 options to choose from to earn while you learn:
A part time job in university surroundings:
Many universities are located where there are a number of retail stores etc where you can get yourself a retail job. Local pubs and restaurants too can be your options. But these would require you to be flexible with your schedule, nonetheless you will have a steady source of income.
Work placement programme:
Many universities offer work placement programmes so that the students will gave easy access to employment. These jobs are quickly taken! And they might not pay as much as you expect, in comparison with the other options.
Become a tutor:
The knowledge that you acquire in your subjects can be shared with others via tuition class. You can tutor people with the things you know. This could get you money as well as a firm and thorough hold of the subject your tutoring. It may require you to travel to where your students are, but that can be excluded considering the advantage it has.
There are plenty of parents who want to leave their children with someone trustworthy while they are away working. If you have full class schedule then this option maybe excluded if you are unable to schedule time. This is a job that works on recreational basis. You can work when you want ( if you have time to spare) or choose not to (during exams etc) . However, this should be taken as an option only by those who are good with kids and who can handle them.
Work from home:
The beat option to choose. Its flexible, you can work whenever and where ever you want. But the downside is finding the right site that suites your knowledge base. There are many website that proclaim they pay you for the work you do, remember to be careful about the ones that ask you to pay! If you are there for a payment it should be them who should pay you, not the other way round. Beware of scams.
Use online shopping portals:
May not be so charming, but you can opt for this by giving away the things you don't need any more. Sell them on online shopping portals. This must be considered an option only if you have no other go! You have to pay a percentage of your earning to the website where you posted the ad about the item and where it was sold.