This document provides 9 tips for improving how one works in Unity3D and Xamarin Studio/MonoDevelop. Some of the key tips include: configuring Xamarin Studio for better usability instead of treating it like a text editor, using layouts instead of dragging windows randomly, taking advantage of debugging tools instead of making variables public, leveraging attributes to avoid manual work, keeping prefabs separate from the scene hierarchy, avoiding nested prefabs, using icons to distinguish scripts and objects, and storing reusable data in asset files. The document emphasizes doing proper setup and organization to work more efficiently in these development environments.