Could a celebrity hairstylist dramatically improve your locks?

What I've learned after spending an absolute fortune on my hair.

Photo of Brigitte Bardot (source unknown)

I feel the need to start this piece by sharing a few ways I am, in fact, quite frugal: Never in my life have I owned a car and rarely do I uber—I walk and subway just about everywhere. Instead of buying a kettle, I boil water in a pot on the stove every day for my afternoon tea. I’m still using a phone cord that’…