Thought experiment. You are doing a really boring job you dislike like data entry, but so well paid you don't want to leave it. You cannot automate it. You cannot work from home. You sit in the office 8 hours Thankfully it does not take 8 hours, you can do it in 5 and then browse the web or something.

What do you do? Trying to spend the other 3 meaningfully like studying with Anki, and trying to find challenging games in the actual job part are two obvious ones, what else? E.g. would you listen to ebooks while doing it? What else?