eBay is awesome!
And I LOOOOOVE Wet Seal and Forever 21.
You could try Rave, maybe, because they have a lot of funky, cool stuff.
Of course there's always Piperlime, Old Navy, Target, etc.
And try Hollister! And Abercrombie and Fitch and Aeropostale and American Eagle! All those places rock!
Anyway, good luck with your fashion and everything, of course I'm not actually John K, I'm his daughter, so yeah. : D