For my first trick, I was reading about this and may want to refer to it later. Not high-tech, not fancy, nothing about the deep internals of .NET.

PageMethods enables reliable URLs.
Linking to a web page is very easy, both in simple HTML and in ASP.NET.
Linking to a page that really exists, passing the right parameters, and parsing these parameters, is a bit different.
PageMethods takes care of your URLs. It proposes a solution to define structured URLs for each of your pages, as well as a clean and simple way to call them.

This seems like a useful method for dealing with this issue. I just don't know how much this issue comes up.

http://blogs.msdn.com/powertoys/archive/2005/12/07/PageMethods.aspx