Everywhere I read that you should alway be on your purpose and continue to improve yourself. What are ways to do this on a snowed in night or on free time at night?

I go to work and go to the gym but I find a lot of free time in between mostly at night when it comes to my work shift. Everything is closed by this time so places to go are kind of out of the question. I do read but that can only happen for so long before my ADD kicks in. any suggestions?