This time-saving tip to set your email signature to say it was sent from your mobile device is one of the best things I’ve heard in a while. The way you save time with that is to just write short responses to emails, and since it’s “sent” from your iPhone or Blackberry or whatever, it’s socially acceptable for you to be brief.

And with all the time you save, you can build an office out of cardboard and draw all over it!