I recently switched back to Mac after many years on Windows. I started with Snow Leopard, and am now running Lion. I'm 99.99% sorted with the switch and the OSX way of doing things, but there are three things I miss from Windows and can't see how to do them in OSX. First, if I'm browsing folders in thumbnail mode, I used to hit the backspace key to go back a level. In OSX, I have to click the back button. Second, I quite often want a window to be full height but its existing width. In Windows, I'd just double-click the top of the window and it would maximise the height while leaving the width unchanged. In OSX, I have to drag first the top then the bottom of the window (or first position at the top, then drag the bottom). Third, in Windows, if a window is out of focus, I could click on it to simultaneously bring it into focus and carry out an action. For example, if a browser is out of focus, click on a link. In OSX, clicking a link just brings the browser into focus, I have to click a second time to activate the link. Is there any way to do these things in Lion?