Paper tape would probably work, as long as you could find a reliable reader for it. I’m actually old enough to have used it and the readers often had problems. Getting rid of the mechanical aspects of the reader and replacing them with light sensors would go a long way toward fixing that.
A Tilley LTM8 to keep the sun off my head without holding in heat. They aren’t exactly stylish, but they work well and seem to be nearly indestructible.