It annoys me when I see people write on or dog-ear the pages of library books. Even with my own books, I never write on them or bend pages. I use bookmarks and if I want to refer to mark pages for future reference, I use small sticky tabs that peel off easily..
Here is another peeve where I agree with RAt.
Even if I am not straddling the line on either side, if I am too close to one line, I back out and re-park so that I am almost in the middle of the two lines. Not only is it a courtesy to those parking next to me, it also reduces the risk of the other driver accidentally hitting my car.
Mano, if you want to be really famous in the future, you need to write “marginalia” in your books. Library books are another matter though.
Recently someone parked so close to my driver side door I had to climb in from the passenger side. No one has any idea of what I wanted to do to that car! Hell would be too good for the driver.