Is there a keyboard shortcut for switching users? For example, in Windows, I press 'windows'+L, and it brings up the login page. I am still logged into my account, but I have to enter a password to get in. I really miss this feature on the Mac. I know that I can set the password screen to come up when I come out of sleep mode, but I want to be able to summon this myself. The reason I ask this is because say, for example, I want to leave my computer for a minute to get a soda, and I want my computer secure, yet I don't want the trouble of logging out and then logging in again when I return, having to reopen everything I was working on. I am looking for a fast shortcut I can type to make this easy. Does it exist? And if it doesnt, are there any alternatives?