I spend all day at my Mac – designing, coding, writing, corresponding, and generally getting things done. That’s why I’m interested in any tool that will help me work smarter. Here’s a few that we’re looking at this week.

MailTags is an add-on for Apple Mail that helps you to organize your mail by “tagging.” I get a ton of email in a day, much of it important and much of it becomes a to-do right away. This seems like a great way to organize that information.

WorkTimer is a free time tracking utility “by designers for designers.” It has good support for getting your hours into Excel or an XML file, but unfortunately no direct support for QuickBooks.

Finally, John Gruber, author of Daring Fireball, has decided to leave his job at Joyent and write full time. I thought his words on this decision were well-written and decided to finally show my support. Good luck, John!