This is interesting. I took the opposite path. I used to remember page numbers while reading books, just so I could come back without getting lost. That habit started in the School library. These days, I bought a simple, cheap, paintable bookmark, about 100 of them, which my daughters can paint. I have them lying around in books, as I tend to read multiple books at a time. My daughters keep painting them with whatever they want, from anime to their favorite characters, to just about anything. So, bookmarks for me everywhere. Sometimes, I tend to go back a few pages just to recollect the books I was reading a while ago.

I used to be a rememberer too with borrowed books, but now I buy used paperbacks and dog ear my pages.