Sara Ford blogged about this a couple of days ago and I thought it was a really cool feature of Visual Studio.
She pointed out, what could be, a little known feature of Visual Studio.
You can highlight and then drag code snippets into the General tab of the toolbox.
You will then fine the code as an item in the toolbox.
If you want to see exactly what the code is all you need to do is hover your mouse over the item and the code will be displayed.
I think that this is one of the cooler features of Visual Studio and a great and easy way to keep code snippets.