You Americans (and maybe all you young people in Europe) are so far ahead of me:
I still do carry real books (physically).
and I like it.
here's my idea of a perfectly portable literary highlight to carry with you every day (just photographed):
[please note that in the case of this pic it's WHITMAN's "Leaves of Grass", which deserves such a grace like barely any other work of letters]
[also note the many little bookmarks I have in the book]