As my guild has at least one sewing day every week. I have a go "tool box" full of duplicates that I keep in my vehicle at all times. Because I never forget to load my machine (but have forgotten the foot control on more than one occasion), I keep a spare foot control in my go bag as well. Fortunately, our Extension Office has a large supply of mats and rulers, so it isn't necessary to transport those items. No wonder I prefer a van -- I am the proud owner of a travelling sewing room.