DCP: Packing

So I think I have bought most of the things I will need for my time at Disney! Now I just need to figure out how to narrow down my clothes selection to the clothes I will actually wear. I really do not want to overpack. I am driving down, so I do have more room than people flying, but I do not want to pack too many things. I want to travel with stuff I will actually need and use. Only 3 weeks to go!!!!!