I've never lost my rotary cutter....I keep it in a leather pencil pouch inside a plastic pencil box... I also keep a pin magnet, a box of pins, needles and sewing machine needles there. Always handy and always easy to take to quilting guild or just into the other rom to work on projects...also keeps them away form little fingers...with smal grandchildren we have to make sure they are out of sight and out of reach....My mind...I think I could lose it at times...lol