I have switched work computers and am now primarily using a Mac, which is great - but I am looking for a simple way to just lock my screen. On Windows, when I hit Win+L, it locks my screen so I can leave my desk and not worry about someone accessing my machine. On a Mac, I cannot find a similar method. The best thing I've read is to put the computer to sleep and force a password upon wake - but that quits me out of apps, etc. and is just a general pain. Is there really not a way to just lock your screen? That seems so silly to me.