Are there otther button options next to "submit"?

Is there a "print" button option?  Is there a button option that lets someone completing a form to save it and return to it later?

The print button is available. To activate it, you would need to use the following steps:

Print Button on Forms

Now next to it there is also the button to clear entered field values. You can see more about it here:

How to add a Reset Button to Clear your Form

You can even change the text of both as shown here:

How to Change Clear and Print Button Text

In regards to save button - it does not exist, but the trick here is that if your form has page previous and page next buttons, the data will be saved each time your customers go from one page to another - indirectly working as save for later buttons.