One of the best ways to be efficient when writing online is to use a keyboard shortcuts while working. I’ve always been a fan of hot-keys and for a good reason: it’s way faster than moving the mouse all over the screen (or screens is you use a multi monitor setup).
In the case of WordPress I’ve never used shortcuts because I’ve got that stupid idea that online apps don’t usually have shortcuts, but as it turned out I was wrong.
Now, it you want to learn the WordPress rich text editor keyboard shortcuts all you have to do is press the help button (on the second row on buttons in the Visual window). In the popup window that appears go to the hot-keys tab where the list of available shortcuts are displayed. There are two categories of shortcuts:
Shortcuts that are combination of CTRL + Letter:
Shortcuts that are combination of ALT + SHIFT + Letter: