One of the easiest ways to improve revenue is to increase the spend of your current customers. The relationship you have with your existing customers is key to them continuing to buy from you. If they feel under-appreciated or abandoned, they will soon abandon you. All the work spent in trying to get a new customer in this case only just makes up for the lost business; that is if you win the new business.
It is hard to increase revenue if you have a revolving door of clients.
