I limit myself to my rolling case for my sewing machine and 1 tote bag. In addition to my FW, the machine case holds a plastic bin with all my sewing supplies. scissors, pins, rotary, seam ripper, thimble thread, extra bobbins, extra machine needles, chalk marker etc. and pattern/fabric for my current project. Tote bag carries all the extra stuff, additional fabric, small cutting mat and any books, magazines or patterns I think I "have to" bring. Just remember...whatever you lug in, you have to lug back out at the end of the class!