It's been more than 21 days on my fairly simple return and I have not moved out of the processing stage into approved. Help??

Did you e-file?

Yes

Please see this TurboTaxFAQ down below:  Why is my IRS refund taking longer than 21 days?.

And I did not file for EITC or the child support stuff that normally draws things out

Mine has also been over 21 days and is still saying processing....maybe it will change in the next day or so!

   Once you e-file your return and IRS accepts it, then your return is on IRS timetable. There is no way of knowing when IRS will finish processing your return, but you can track your refund on the IRS website. You will not see your refund expected date on the IRS website, until after IRS approves the refund. For most taxpayers,(9 out of 10), the refund process takes approximately 21 days.

Please see this TurboTax FAQ: 

  https://ttlc.intuit.com/replies/5340655