The most important thing for your business to be successful, is your clients. Obvious right?
Without clients you don't have revenue coming in, so collecting information on your customers is imperative to enable you to market to them in the future to grow average spend and increase how often they visit.
Many salons these days, possibly due to bad habits or feeling too busy, tend to overlook effective data collection with their customers.
It is true, it takes work and consistency from you and your staff to effectively get client information into the system, but it is one of the most important things you can do.
The more information you collect on your clients - the stronger your business will be.