Automatically avoid having symbols in the friendly URL

When I create a new SharePoint page, I want the generated URL to automatically ignore symbols like apostrophes, commas etc.

A page named:

Where do you want to go today?

…currently looks like:

www.yoursite.com/Where%20Do%20You%20Want%20to%20Go%20Today

…but should become:

www.yoursite.com/where-do-you-want-to-go-today