The easy way to add controls to the VS2005 Toolbox

Did you know that there is a way to add controls to the Toolbox in Visual Studio 2005 than selececting "Add Items"? Just open Windows Explorer and browse to the assembly containing the controls you want. Select the assembly, and drag it onto the Toolbox, in the tab you want the controls to be in. Visual Studio 2005 will then add any class that has a "ToolboxItem" attribute on it to the Toolbox. Beats having to click a bunch of checkboxes, huh?