I hardly print anything now I have an iPad. School info, church rotas, masses of committee documents, recipes, packing lists, things to do lists, shopping list etc etc, are all on my iPad and iPhone. One of the main reasons I bought an iPhone was that I had so much info stored on my iPad, I really wanted to have it with me all the time and the iPhone is so much easier to take around with me everywhere. They compliment each other perfectly: iPad at home, iPhone out and about.
One of the really handy tools for cutting down on paperwork printing for me is the print screen option as it is so handy to be able to take a quick snap of an emailed receipt or holiday booking info etc for quick reference from the camera roll, on or off line.