Last year I went to a Master Gardener's seminar. They handed out coupons for online ordering at Renee's Garden. The deal was buy 4 seed packs, get one free. I bought like 10 packs and then split the seeds with various coworkers and friends.
Renee's Garden has apparently gotten worried about my lack of recent purchases because they sent me an email with 15% off of my total order. Now I will spend the rest of the evening perusing the various seeds available, and then I'll ultimately talk myself out of buying any.
Now, if only I could get Botanical Interests to give me a deal (they've got some Black Krim tomato seeds I'd like to try).