I have the large folding omnigrid travel cutting mat/ pressing surface, works well. then I have everything else in a huge tote bag and my sewing machine rolling case. Just don't forget simple things like bobbins, cords, foot pedals, thread needles, those things I think are the most commonly forgotten. I got to a class with absolutely no bobbins in my machine or bag, luckily the LQS had prewounds, and luckily they fit otherwise that would have been a class I couldn't sew in