I keep all my old rug bags. I find them brilliant for storing kit as usually see through so you can see what you have put inside them, tough and waterproof. I go a step further and have different bags for different phases so I can organise myself quickly and know exactly where to find all my kit during the day. I do not have a lorry so it makes it easy to pack up the car and then when you unpack at the end of the day its easy to store it all again. I even have one which fits my body protector, number bib, medical card and spare gloves so it keeps everything neat and tidy and together and I do not tend to lose anything!