Friend and I are scarily alike, ideas?

Me and my friend Laura are scarily alike. We have the same clothes, the same ideas, the same phone. Like once we were in hmv and then I went to show her a poster and she was like, 'I have that poster!' And we have the same phone, but a different model. So that's what we think, we're the same person, but a different model. I mean, people will probably respond by saying that it's normal to be like the same as your friends, but not THIS similar. I mean, we haven't been friends for that long, so it isn't like the reason that we like the same things because our personality's have rubbed off on each other. Any idea's or solutions?