Short to medium-haul is easy - just go through the big pile of magazines that keep coming every day, ipod, newspaper, and a book.
TPAC long-haul - same as above, plus a course or two for my professional continuing education requirements, AVOD, and then sleep on the last few hours in a 14-hour flight. Normally I will have more than I can handle in a long-haul flight, and by second-half of the flight, I will be so exhausted I can go right to sleep until landing.
I feel so good every time I step off the plane when I can finally throw away a stack of finished magazines. :-: