removing .php extension with htaccess?

[eluser]chobo[/eluser]
Does anyone how to remove the .php extension from a url? I'm using dreamweaver and if I click on a controller (ex blog.php) and view it by pressing F12, it opens it in the browser with the path http://mysite/blog.php which is invalid because the controller is just "blog" without the extension.

It kind of sucks to manually remove the .php every time you want to run a file. Any help is appreciated.