Responsive Webdesign is not a buzzwork but a technique that is here to stay. I put together some tools, articles, scripts and goodness that will help webdesigner, developers and front-developers to create website that will adapt to the user viewport. You can find those in my article on Onextrapixel : Really Useful Resources and Tools for Responsive Web Design
When creating a path or a shape (pen tool or rect tool) in Photoshop CS6, you know have a new drop-down menu with pretty useful hidden functionalities. One of them is the ability to merge the path and shape you created (equivalent of Illustrator merge in pathfinder).