Are you using Gmail? Then you'll like to know there's a whole lot of shortcuts that will cut down some time for you. This  http://visual.ly/minimalistic-gmail-cheat-sheet " onclick="window.open(this.href);return false;">graphic has all the keyboard shortcuts and it comes complete with visualizations of each action.

You can also just use the official Google Support page , which has them sorted by which are on by default, and which aren't.