Just so everyone knows, the saying is "I couldn't care less."

Saying "I could care less." is incorrect. It means there are things that matter less to you than the subject at hand, and that's not the meaning you're attempting to convey.
_________________________
She was standin' alone over by the juke box, like she'd something to sell.
I said "baby, what's the goin' price?" She told me to go to hell.

Bon Scott - Shot Down in Flames