[1]
Finish is offering 1 million samples of their Finish Quantum Dishwashing Tabs [1] on their Facebook page [1]! You will just need to “like” them and fill out your contact information.
Please note that it has a step where it asks you to share this with 3 friends, however it appears that you can just skip this portion and request your sample. Your sample should arrive in 4-6 weeks.
(Thanks Save The Coupons [2]!)