Keyboard shortcuts are one of my favorite ways to save time in Gmail. Used as part of repetitive processes like sending emails, they can save you real minutes every day.

Check out the full list of keyboard shortcuts here – Keyboard shortcuts:http://support.google.com/mail/bin/answer.py?hl=en&answer=6594

and remember, from anywhere in Gmail, you can view the full list of keyboard shortcuts (once you have turned Gmail shortcuts on), by typing Shift+?