this isn't my tip, I found out from someone else. and i don't remember who i got it from.  Anyways, i sometimes find it frustrated that i have to keep zooming in and out . What i do to keep from having to do that is I go to Window>Arrange>New Window for """. This will open a duplicate window of the current window that is select. Doing this will alow you to have 2 different viewing areas. one that that you can place on a seperate monitor and zoomed out so you can see your whole composition. Then another one that you can use to work with normally.  When ever you make an update you will see the other window auto update and  get a good grasp of what how your composition works as a whole.