Code Generator tools for VS.NET

XSD -> Classes Generator Custom Tool (radically new and extensible)

String Resource Management VS.NET Addin to make using resources easy

Test Driven.NET

All About Handles in Windows Forms

Creating Applications with NotifyIcon in Windows Forms

Overriding Control.Controls

Windows Forms Painting: Best Practices

Looks like it is worthwhile looking at the following: devAdvantage : Refactoring C# to Best Practices

Tools Affected by Visual Studio 2005 / Team System

Book Review: Expert C# Business Objects from Michael Swanson