What are some good ideas for fundraising events?

My friend and I are starting an organization. We are a bunch of high school students, and we are looking for a place to meet every other week. However, all of these places charge money, so we needed a fundraising idea. Can you guys help me come up with an event that we can host for fundraising, and exactly how to go about setting it up, step-by-step, and how to put together every part of it.