How do i save my data so I can stop now and resume tomorrow?

Where is the turbo tax screen that has "My Account" at the top?

@inuitjhb48 This answer was from last years tax season and My account is no longer at the top as TurboTax Online is set up differently this year. TurboTax will automatically save your information or you can click Sign out at the bottom left-hand corner of the TurboTax Online screen while in your return.

To save and sign out: Pease select My Account at the top of the TurboTax Online screen and then select Save & Sign Out. Remember when you come back to use the same user id and password as you used to start your return that way you will pick up right where you left off.