Recycle, recycle recycle.
Recycle the release, the daily message, recycle scrap paper, i keep all that **** in my flight bag until the end of the trip and toss it in the recycle bin when i get home and i re-use the same water bottle for a couple of weeks (after washing it out of course).
Its not too hard to do and its a huge impact if you think about it.
....not to get too preachy....