So we are doing a project in physics and it's the balloon powered car project. If you are unfamiliar you are to build a car, that is powered by a balloon, out of household objects. I asked if I may make my car out of wood and Mrs. Teacher said sure. So the problem is that I only have a hand saw, drill, and dremel. So I made my first car and brought it to school and realized once I got there that my drill holes are not straight. I need a way to drill my holes very straight and extremely precisely. I would also like to make straight cuts but that is fairly hard to do with a hand saw. If anyone can help me to make a cutting guide for it that would be awesome. So to sum it all up I would like some recommendations on maybe a drill guide as in how to make one out of 2x4, or just drill precise holes with a poorman's workshop, as well as a cutting guide for the hand saw. Another note to take is I have the poorest of poor man's workshops. I have no; bench vice, table saw, chop saw, drill press, etc. Any advice on designs would be happily accepted as well. Thanks in advance.