Running late today...so here are two mini Hip Tips.
Speedy means of moving from one Open drawing to another:
I am much too lazy to move my cursor up to the Window pull down menu to move from one open drawing to another. I always use Control+Tab to cycle through all of my open drawings.
And if you have AutoCAD 2005 or higher, set the system variable TASKBAR to 1 and your open drawings will display along the taskbar at the bottom of your screen...another super speedy means of moving from one open drawing to another.
I'm off to take a class today! Have a fabulous Tuesday please...