I have at least two of everything, I have been sewing since I was about 10, so I have had a while to get things together, anyway, I have a Grab-N-Go that I keep packed with all the essentials, and then I add what I need for a retreat or class, I keep a notebook with a complete list of what I need for different types of classes and different climates, this is also kept in my Grab-N-Go :D