There was a monthly pocket-sized American Express timetable. I subscribed to it for years. It was critical during IRROPS to show the agent alternative flights on other airlines (also when no pay phones available). Every six months or so I would get a phone book sized worldwide timetable from OAG with a request to subscribe (never did - too expensive). I really enjoyed going through that book making up RTW itineraries, looking up airport/airline/aircraft codes, even just to see interesting flights between different city pairs.

I liked the Amex book better than OAG, since the OAG book was arranged by destination cities, then you had to look up the departure city. The Amex book was arranged by departure cities, which made it easier to find alternative destination cities from a particular airport.

When in a foreign or large US airport, I used to enjoy going from counter to counter, picking up timetables (and when I could get away with it, baggage tags). I would then spend most of the flight I was taking reviewing them. I found it more fun than reading real books in flight. Friends/family always thought I was nuts.

(The above confession would not be possible anywhere except FT!)