The only rule I use is, 1/4 inch seam's. Do what works for you. If you see a pattern you like, just ask. You dont need to spend a years wages on a mach, if you like to piece by hand, thats good, but you could try Craigs List to look for a mach thats been broken in, and wont cost alot. I have a huge hoop, all my quilting is done by hand tho.The best thing you can do, is to try everything to see what you like, and what you dont. Happy quilting!