If you have a Twitter account, you can get a free sample of Zesty Salsa and Spicy Buffalo Wheat Thins.
You have to tweet the following message:
And then Wheat Thins will tweet you back with a link to claim your sample.
Now I feel a little silly doing this but I checked and it looks like Wheat Thins is responding to people with unique links for the samples.
You can also get a full size box of Wheat Thins for just $1.00 at Target this week.
(Thanks Cha Ching on a Shoestring)