You can live your whole life without one and still be happy and thriving.

Just shoot a selfie or have a friend snap a photo, slap it on your profile picture, send it to your publisher, add it to your email signature, share it at conferences, and you're sorted!

Similarly, you don't need a salon for a haircut. DIY in front of the mirror. Fix your teeth with tools from a toolbox. Sew your clothes. Build a car to drive in the city. Heck, build a plane to fly to another continent!

Or...

Embrace the mystery! Skip the pictures altogether. Let people wonder about you, your looks, your thoughts — let them judge you by your deeds, not your appearance!

Don't forget to spread the word about your success. Well, right after you build your laptop ;)