I want to efile. How do I do this?

E-filing is easy in TurboTax.

Once you have entered all your data (W2, 1099R, 1099MISC, State info, etc) go through the Review section. You can find the Review section in the left-hand black menu to the left. This will tell you if you have anything to correct before filing. 

Once you have gotten through Review, move on to the File section, also found in the left-hand black menu. There are three areas you go through here (entering payment, choosing to e-file, deciding where your refund goes, deciding how to pay your taxes due, etc). At the end of the third section, you would e-file.