Minna, Hi from another farm girl! I know what you mean about worring about losing or breakings something. I dont have a screwdriver yet but I found a very cool case that you put a water bottle in at Walmart for a couple of bucks. I has a snap fastener (like on a dog leash) on it to attach to a belt or whatever. It is a heavy fabric that is really durable and washable with a sturdy draw-string top with a toggle to keep it closed. It would fit all your supplies for a day. I use mine for my powerpack, Janty stick, juice bottle, etc. It is a bright purple. Too heavy to carry in a purse but great for around the farm.