Mischa Barton is pictured here getting hair extensions in Hollywood earlier this week. Extensions seem to be everywhere nowadays, but I think we forget about what a huge financial commitment they are. A full head can cost upwards of £600 and when you factor in maintenance every couple of months, the cost quickly rises. That's why I love my Superdrug hair extensions that I can just clip in and out whenever I feel like my hair needs a little volume. They aren't of course made of real hair and so they feel a little bit awkward blended into my natural hair, but they do the trick when I want them for a night out, and they cost me next to nothing. Have you ever worn hair extensions?