It's been my understanding that you tip all the people who work on your hair. You tip the stylish the most, then usually give the shampoo person, etc. $5 or so.
BUT, it has always been my understanding that you only tip EMPLOYEES of a salon. I thought that if the OWNER works on your hair, you DON'T tip as she/he is technically getting "all the money" anyway. However, employees only get a portion of your bill, so that is why they are tipped.
I read the "you don't tip the owner" info in women's magazines over the years.
Did you tip the owners as well? /images/graemlins/ooo.gif