Want to change hairstyle and would like some advice...?

I am looking to change up my hairstyle. Right now I don't do anything special with it but I have always considered going with the messy look. My hair is about an inch to inch and a half long on top and shorter on the sides. I was just wondering what style anyone would recommend and what products would work best including shampoo, gels, mousse or whatever. Thanks in advance.