Terry White, President and Founder of MacGroup-Detroit, offers up three tips for new Mac users.
1. If your new Mac is a portable Mac like a MacBook, the 1st thing I would do is setup the security to require a password upon startup/wake from sleep.
2. Get an external drive and backup via Time Machine.
3. Join your local Mac Users Group.
Full article, with screenshots and more info, here.
MacDailyNews Take: #4. This is a biggie for Windoze to Mac upgraders: On a Mac, the red “X” button closes open windows, but most applications remain running. Command-Q or “Quit’ quits (exits) the frontmost app. Look at your Dock from time to time: If you have 46 apps running, you’ll want to actually quit a few of them at some point. 
