We're in the process of decorating upstairs at the moment and it brought back memories of my bedroom wall as a teen which was pretty much covered floor to ceiling. I used to cut out pics from Kerrang! of my fave artists just to make sure every available inch of space was used.
My absolute fave posters were a big black and white picture of Kurt Cobain who I thought was gorgeous (although sadly deceased by the time I was interested in Nirvana) and a poster of South Park which was huge in the late 90s. Who was on your wall as a teen?