how to save prefs for windows/printera


Can anyone tell me how to tell OS X to save window preferences as well as printing preferences?
For no particular reason any Finder window I open will automatically move the scrollbar to the bottom, so I always have to move the scrollbar upwards to see the content in the window. How can I change it such that every Finder window just will show me the top of the window?
Same with printing preferences: how can I tell OS X that I print on A4 and not on Letter. I always have to change this for every printing job. There must be a way that OS X will remember this?
Is there any documentation on these kind of issues...?

Thanks for any feedback...