I have a small leather zippered pouch/bag that holds my scissors; thimble; needles; etc. I use that primarily for my hand quilting needs but could certainly be a traveling bag as well. Last time I was working on an EPP project, I prepped my pieces in advance and then sewed on the go. I made my own templates from file folders so I didn't have much of a concern with creasing and such. Just used a gallon ziplock to tote things around. But I do like the idea of a shoebox size plastic container (or just an old shoebox and rubber band for that matter).