I really need some professional advice, to cut a long story short I work in a hair salon offering an add on service of manicures, pedicures and gels. I have approx 20 gel and 20 normal varnish colours, I keep telling my employers that I need more colours but they seem to think I'm being unreasonable. How many on average of each should I have available for clients to choose from? Granted I'm not particularly busy as I have only been there for 5 months but I do have regulars that are getting bored with the lack of choice. Any advice will be gratefully received, thanks in advance x