Lots of cereal samples are being given away. Some of these ask for an email address so they can send you e-newsletters but you don't have to sign up. Just click No Thank You, Send Me My Sample. Have fun!
Total Blueberry Pomegranate: http://freesample.totalcereal.com/TotalFY10/Default.aspx
Fiber One Honey Clusters: http://freesample.fiberone.com/FiberOneFY10/Default.aspx?source=11112_11111
Bear Naked: http://www.bearnaked.com/discover/?utm_source=newsletter-pro&utm_medium=email&utm_campaign=DiscoverBN
Kashi (Choose 1 of 3 different kinds): http://kashi.com/surprise
Thanks Amy for the tip on free Kashi cereal.