Email, Etsy, or Facebook?

How do you prefer to handle your business? How do you prefer to communicate with your customers?
Which is the best option for you?
Facebook, Etsy, or regular Email?

Which do you prefer and why?

To be honest, I find Facebook the easiest - mainly because I am on there all the time and have it on my phone. lol  It's quick and easy. I can post all my photos on there, have quick access to my messages and update my status and often as I'd like. 

What do you think?