Rubik’s cube was my favourite for a few years when I was commuting by train. I had a 40-60 minute trip each way for work and it was an amazing way of killing time without going mad.

Then podcasts and audio books came in and honestly, I can manage sitting still with audio playing. I need it to be stimulating enough, but running everything at 2x speed is fantastic and really makes a huge difference.

That said, I also have a notepad and pen so I can write things down while sitting, so I plan projects and write questions to be answered later. That helps a lot. I also have my phone which is great for passing time, Offline Games is a fantastic set of games that dont require purchases or ads. I also have my first aid kit on my belt and I regularly go through it and make sure all is well, along with my tech pouch. Organising those and cleaning them out works well.