Right handed, clip out right foot first.
I think it's important to do what comes naturally! Thinking too hard makes clipping out way harder than it should be!
But I did notice the other day that it feels "funny" to me if I unclip my left foot first. Hmmm...
2007 Trek 5000
2009 Jamis Coda
1972 Schwinn Suburban
"I rejoice every time I see a woman ride by on a bike. It gives her a feeling of self-reliance and independence the moment she takes her seat; and away she goes, the picture of untrammelled womanhood."
Susan B. Anthony, 1896