Disabling steam big picture mode

I am never going to connect my computer to my tv and use steam. I am stupid and enabled the big picture mode and am hating it. I have yet to find a way to disable this feature and go back to way steam was. Please help.

how about return to dektop function?!

hit the exit button> return to desktop

I keep turning it on by mistake...it is about three or four click to get it off, also my third part XBOX controller that works on a PC seems to enable it on every spare button it has, even in game.