If I’m on my own then I’ll usually take a walk, find a restaurant and read. The kindle is a godsend as it saves having to use spare cutlery to prop the book open. Most of the time I’m abroad so I really enjoying just walking around taking in the atmosphere. I keep gym stuff and swimming trunks in my suitcase as well. Quite often though there is no real downtime and we are just working or eating or sleeping in the hotel.
Before everything went on demand I also had a useful collection of cables, adapters and a tuner to break into the Pay TV. 🙂