In Visual Studio 2010 we have more than 200+ snippet to make your HTML life easier. It is not just Snippets which you can use, there is Surround with. For example, you want to wrap an area into UpdatePannel, you have surround with option with a mouse click.
Couple of shortcuts,
button - which will create
<asp:Button ID="Button1" Text="text" runat="server" />
There are many more. You may also use mouse button to write your HTML code just like C#/VB.NET.