Going to a new salon for the first time and am hooked with the owner of the salon. I've read mixed things about whether it's the done thing or not, plus at £70 for a cut and blow dry I'm not sure I feel another tenner on top is justifiable! However I will bow to social convention and go with the majority vote on here.
I never used to tip my previous hairdresser as she was mobile and quite a bit more expensive than your average mobile hairdresser