GlaxoSmithKline is offering a free sample of Sensodyne toothpaste and free "high value" coupons.
How to get a the free Sensodyne toothpaste sample:
Visit the Sensodyne site and click on the free sample button. Fill out your mailing address and other required information. They request a phone number but it is not required.
The offer is available in the United States to those over 13 years of age.