Tan offers?

[Nail Perfection]

I did an offer of half price tans for one minth. So £10 instead of £20. I've just had a new customer who came twice for the offer, if I would consider still keeping offer on.
I'm reluctant to permanently reduce my price so looking for suggestions for an new offer?
I was thinking maybe offering half price tan if the client booked at least 2 tans in a month?

 

[spraytanningguy]

Try tan parties where the organiser gets a free tan or at the very least a reduction if they bring a friend (to be tanned)