About a month ago, the VSCmdShell Power Toy was released for VS2005 by the Developer Solutions team at Microsoft.
I've been following the different power toys releases for quite some time, but until now, I didn't find any real tools in there - only some cool toys I rarely get to use. When the VSCmdShell power toy was ported to Visual Studio 2005 (an earlier version already existed for VS2003), it presented a great opportunity with it - having a command-line shell, with all the .NET environment variables already loaded, right next to your code-editor, solution explorer and all other VS goodness.
For me, after spending so much time with Team System, this power toy really meant one thing: I get to use TF.EXE without even reaching for my mouse :) Sure, alt-tabbing worked fine until now, but when you add to that the ability to copy-paste, intellisense and direct access to IDE commands from the command-line - not to mention PowerShell support - this power toy is a winner in my book.
Here you can see it in action:

Go download your copy today. It really is the best of both GUI and console worlds.