>What's the way There is no one way. I doubt there's even one HN-way (as you call it). You should consider using a CRM app for your clients. But find one that

>What's the way There is no one way. I doubt there's even one HN-way (as you call it). You should consider using a CRM app for your clients. But find one that's not too complex – at the moment, I doubt that you need one that includes everything including a shower and a laser. But if, sometime in the future, you need to add more features then make sure you can add those features when you need to.