but now can't imagine not using them? When I first switched to Mac 6 years ago getting out of the Windows way of all apps being full screen was one of the hardest parts to get used to. Eventually I got accustomed to the OSX way of multiple windows on the desktop. When I first installed Lion I HATED the new full screen option, especially in iTunes, iCal, etc. It felt so unnatural and not Mac like at all. After a month of forcing myself to use it however, it's like second nature. The gestures to swipe between apps, Mission Control, it's amazing for productivity.