I know KLM recently introduced boarding documents you can print and fold four-ways so that it was pretty much the size of your passport and if you have a two-flight connection there would be one on each side.
The overall details are pretty well laid out as well.
I'd post an example, but the only one I have is my own boarding pass, so that's not really an option.
I quite like the idea of folding it so that you only see your next immediate step at a time. For example, first step is gate number and time to be there. When you're there, you fold it over and it shows you your seat number.
I'd post an example, but the only one I have is my own boarding pass, so that's not really an option.