This is an amazing offer from Seeds of Change -- get 25 packets of organic seeds for just $4.99 shipped! These retail on Amazon.com for $3.29 each, so that's a value of over $75.
This offer is scheduled to run until December, but I have a feeling they'll have give out their 100 million seeds long before then. I just ordered mine and it said to expect them in 2-6 weeks!
(Thanks, Organic Deals!)