My cousin and I are going to share an apartment. We get along really well (and have lived with each other before, when we were younger...she was in the 6th grade and I was in the 8th), but we're complete opposites in most ways...the only thing, really, that we have in common is our sense of humour.

Anyway, I'm the laid back hippie/rocker type with posters of Bob Dylan and James Dean on the walls (not that I'm going to put them in our shared space...if I want them up, I'll put them in my room). She's the preppy, girly type who's in love with her car (a yellow cobalt...here's a picture: http://img321.imageshack.us/img321/3888/pic77xx.jpg). I'm also about two years older than her (she just turned 18 and I'm almost 20). How can we make our shared living space (i.e. living room, kitchen, dining room, etc.) look good without our two styles completely clashing? Any general advice?

Thanks!