For most of us, including me, seeing our email Inbox tends to blast us with stress and/or temptation. There's a lot of things that can steal away our attention and energy from whatever task we're involved with - and in the worst case, hijack us entirely. Therefore I'm working on habits to be more like the productivity experts say is most effective, and only check a few times a day, in planned fashion.
But what if you just need to send a quick email in the course of doing a task? Well there are ways to send emails without ever seeing your inbox.
With an external mail program: Type "mailto:" into your browser's address bar and press enter. A "send mail" box will pop up, and, at least in my email program of choice, Thunderbird, you don't ever see your inbox. You can also create a bookmark: just create or edit a bookmark, and in the "Location:" field put "mailto:".
With Gmail: Copy and paste the following link into your address bar: https://mail.google.com/mail/u/0/?view=cm&fs=1&tf=1
You can also bookmark it. Then even after you hit send you won't see your inbox - you can easily and seamlessly get back to your work.