Remember The Milk is an amazing service, when it comes to making you more organized. And, yes we all need that, you know that, you need it. So, don’t have the expression that nah! I don’t need a tool to organize my work!
Anyway, Remember the milk has recently launched a FireFox plugin which plugs a sidebar to GMail and allows you to easily to assign TO DOs and reminders. It integrates itself well with your GMail contacts and with Google Calendar and thus gives you a feeling that it’s a new feature of GMail itself.

Credit : remember the milk service
The interface matches so much with GMail that you can actually fool a friend of yours saying that Google provided you with this feature to you as you are the power user of GMail :)
And now the serious thing, it’s good to see that Remember The Milk did a fine job with integrating the TO DO in GMail, but don’t you think that Google should have done that before them. Google Calendar is a nice web application and they should be integrating it with GMail rather than Remember The Milk doing the integration with it.