Things You Don't See Iron Man Do Anymore:
No, I'm not talking 'bout standing around in his golden iron undies (although he doesn't do that much anymore)...
All panels in this post from Tales of Suspense #43 (July 1963), plot by Stan Lee, script by Robert Bernstein, pencils by Jack Kirby, inks by Don Heck, letters by Artie Simek
...but rather defeating an enemy by performing cheerleader cartwheels:
Of course, the very last panel of the story does show Tony Stark doing something we still see him doing: mackin' on the fine, fine, ladies: