Emacs

WYSIWYG, or What You See Is What You Get, is the way to go.

Give Emacs safe access to your API keys.

Quickly return to focus when working on an important piece of code.

Waiting for a long compilation is like waiting on hold on the phone. You just want to know when it's over.

Browse errors from W3C's Markup Validation Service in Emacs.

Compose HTML email in Emacs Org mode.