This one may be the hardest of the bunch and a bit more of a challenge, but the tried and true way to taking on s different look has always been your crafting your crown and glory--your hair!
If you've always worn your hair pulled back into a bun or ponytail then let your hair down for a change. If you’ve had the same hair color all your life why not go a shade or two lighter?
In case you're feeling a little hesitant about drastic changes why not opt for an ombre look? with ombre you still have your original hair color at the roots and an entirely different color at the ends.
If that idea also seems frightening you could always experiment with a new hairstyle via wigs, it’s the secret of many celebrities and the reason why you always see Hollywood starlets with revolving looks.