I'm old school. Most cuts are with an X-acto knife and a metal straight edge. I did buy a Dremel about 6 years ago with big plans, but after melting a few pieces of styrene, I went back to what worked. Sometimes I drill holes and just clean it up with the X-acto. When I'm cutting up my big sheets, I just score it and snap pieces off. I buy my 1/16" and 1/8" in 4' x 8' sheets.