Empty inbox

I use the inbox as a to-do list for all e-mails I have to do something. I have another to-do lists, but this takes so much of the weekly activities. I fight against it as so much people do, and I organize my agenda based on objectives, being the e-mail as something that happens and you have to attend as second priority.

And today is the first day I was able to see this:

the inbox is empty!!