It's a given these days. Walking into a salon and getting a cut and colour is often tantamount to being approved for a small loan. Leaving aside the cut itself, most high street salons charge an average of £133 for highlights and depending upon the length of hair it can sometimes cost considerably more. Add to that an extra £65 to benefit from the skilful hands of a style director and before even sitting in the plush salon seat and having a complimentary glass of Chardonnay, you've already spent nearly £200.