One thing it took me way too long to learn with Visual Studio 2003 is how to customize the default file templates.  Well, it didn’t take me long to customize the templates once I knew where they were, it was finding them that was hard.  

For example, when you add a new web form to a project, you don’t have to put-up with all the garbage tags in the HTML page header that Visual Studio auto-magically generates. You can modify the ASPX page template to show what you want so you don’t have to modify each new file.  The same can be done with class files, XML, etc.

The template customization feature of VS.NET 2005 is pretty nice and the guys and gals at MSDN have already created a lot of documentation for template customization:

MSDN2: Visual Studio Templates