Weight Watchers are offering a fantastic promo code that will give you a free 14 day trial of Weight Watchers online.
WeightWatchers online gives you a number of tools that will help you manage you weight and more detail can be viewed here.

To sign up to the Weight Watchers free 14 day trial simply follow these steps:
1) Visit the Weight Watchers Promotion sign up page here.
2) Enter the following Weightwatchers Promo Code: 4-16-2401-183936
3) Follow the on screen sign up instructions.

Terms and Conditions apply to the offer and these can be viewed below:

To activate the 14-day Trial enter the activation code. You will also need to enter your credit card details during the sign-up process. Activation code is valid until 31st December 2011. At the end of the Trial period, you will automatically be subscribed to our 1-month plan and we will begin the payment process of charging A$29.95 to your card. To avoid being charged you must cancel, which you can do in the My Profile section of our website before the Trial period ends (midnight AEST on the 14th day of your Trial). This offer is available only for new Weight Watchers Online subscribers in Australia and New Zealand, and cannot be used in conjunction with any other offer. Prices are subject to change at any time. May not be redeemed for cash. Your statutory rights are unaffected. Void where prohibited.