I was able to get my first mani-pedi in about 18 months and I am not sure I tipped enough. My esthetician is now in her own independent location, having moved twice since my last appointment. She does a really good, careful job on my hands and feet. One of her regular pedicures takes about an hour and a quarter, so she sees a lot fewer people than the norm in many nail salons. Her prices have significantly increased since my last appointment. How much should I tip?