If you’re not satisfied with how AutoCAD handles switching between drawings, you can consider these add-ons/plugins. Very handy tools!
Do you want to load and use AutoLISP application? See this basic tutorial. The easiest way to do it.
Do you think AutoCAD ribbon interface have you a hard time just to switch between drawings? See some alternatives to do it here.
See where the option to change publish option from multi-sheet PDF/DWF to single-sheet file or vice versa.
Brian Benton wrote about the importance of using template. Check his article and start to increase your productivity!
Do you wish you can work with different units in AutoCAD? See this trick. I can work with mm and inch on the same file!
A compilation of AutoCAD tips. Read all 100 of them to increase your productivity!