This year I only have 1 W2 from 1 employer to report for income. I do not have investment income or real estate income/sales. What is the simplest TT product to use?

[VolvoGirl]

You can probably use the Online Free Edition.  I would start there.  It will ask you to upgrade if you need to enter something else like if you want to enter itemized deductions. 

Or you can buy the Desktop program, either Basic or Deluxe if you need a state.  All the Desktop programs have the same forms so you can use a lower version.

Start an Online return here,
https://turbotax.intuit.com/personal-taxes/online

Or buy the Desktop CD or the Download program here,
https://turbotax.intuit.com/personal-taxes/cd-download

[DoninGA]

You can use the Free online edition from TurboTax since you only have a W-2 to report on your tax return.  When using the Free online edition the state program is also free and there are no e-file fees when using the online editions.

https://turbotax.intuit.com/personal-taxes/online/file-your-own-taxes/

[Critter-3]

Turbo Tax still has a Free Edition for very simple returns. But they are no longer participating in the IRS Free File website.

Start a Turbo Tax return here,
https://turbotax.intuit.com/personal-taxes/online

Or find another free offer at IRS Free File (opens mid January) 
https://www.irs.gov/filing/free-file-do-your-federal-taxes-for-free