Is it worth taking on every client who comes to you?
As business owners, we often feel that we should take on every client who comes calling.
But that's not always the best choice: Just because someone comes to you who's interested in a business relationship doesn’t mean they're going to be a good client.
In order to make your business as profitable as possible, you really need to assess your client relationships and ensure that they're win-win opportunities for you.
This is where the 80/20 rule comes into play:
You should be focusing your time on the clients who are most profitable and who fit within your reason for existence.
And you need to learn to say no to a potential or existing client when they don't fit within your business model.
Most recommendations are that you should fire the bottom 10% of clients (in terms of profitability) each year so you can focus on your more profitable clients with your limited time.
Managing- Fire Your Bad Clients - AOL Small Business