What is/are the best way(s) to fundraise?

I'm in high school and I need money to pay for various expenses -- clubs, events, etc. It's mostly because I feel guilty when I ask for my parents' money, and I'm too much of a slack * to get a job (oh yeah, I'm also bogged down with homework because I'm all up on the academia). Suggest the cheapest ways that require the least amount of work, but still make a reasonable profit.