In my spare moments, I've been reading Past Master by R.A. Lafferty. I read this one about 20 years ago, and it went right over my head. Now I am enjoying it, and want to read some more of his work. On the other hand, much of what I enjoyed reading 20 years ago wouldn't much interest me today. Tastes change.
One thing about working a 4-day week, there is no such thing as "hump day". I'm already over the hump by Wednesday!