I live in London and have a 1 hour commute by tube. I read even if I have to stand in a sweaty, crowded space. It helps with distracting me from the horrors of the journey.

It also means I get ~10 hours reading done a week, which has come to ~50 books/year for the last few years.

I read mostly non-fiction and usually they are textbooks on varied subjects (often not related to work). I feel this has vastly improved my understanding of the world and has meant I can talk to people about many various subjects, ones I would know almost nothing about otherwise.