I've been using a daypack/backpack type bag for many years.
Before I got an eareader, I'd have 5+ books in there "Just in case" Usually paperbacks though, so it wasn't a huge inconvenience.
Having an ereader has been a huge benefit for me though. now I have 1000s of books to select from whenever I want.
Still, one of my hobbies is Tabletop roleplaying games and I still prefer getting the hardback large books (Kind of A4 sized books) for the rules for these games and I often have 1 or 2 books like these stashed in my daypack for some light reading.
