With a long pole, the coil is strong, (the coil thus produced is natural)
Bring pictures (it is more convenient and easier to communicate with designers)
As for washing your hair, it's a personal habit, and it doesn't matter if you wash it every day.
The price has a lot to do with the level of the salon you entered, (150 yuan, all over the country, so I won't announce the high price? Well, it depends on your financial resources and income? )