Supergirl's Identity Crisis

Linda Danvers is sharing her swinging bachelorette pad with a young alien princess--don't ask--but she comes home to find things askew:

And how does the miscreant know that she's Supergirl??

D'oh!!

I know the bar is set pretty low, Kara, but that has got to be the stupidest place to put your costume in the history of super-heroes. Just hanging on a hook in your closet? Sheesh, you'd never see Clark doing that/. And I thought Kryptonians were "super-intelligent"...

From Adventure Comics #414 (1972)