You also want to book your appointments for the day itself. Hairdressers can be as popular with brides as scenic churches on summer Saturdays. And don't forget to book for a dry run beforehand, too, to make sure you're totally happy with the style you'll be wearing.
Find out your stylist's prices so you can start building your beauty budget into the financial plan. They generally charge what they would earn in the salon for the time they'll be out of it, which includes travel time. So if money's a factor you might want to visit them at the salon before the ceremony.
Don't forget to factor in the hairstyles of your bridesmaids and close relatives, whom you'll also want looking their best.