The awesome folks over at WinterSown.org will send you free tomato seeds in exchange for your Self Addressed Stamped Envelope. This is possibly a USA-only offer, I’m not sure. They strongly encourage you to learn the technique of Winter Sowing your seeds.
If you give them a small donation, you’ll get about twice as many seed packets and you’ll also have assurance of receiving your top choices.
I now have to make room for an entire extra bed of tomatoes. :) It’s not such a bad thing.
I plan to save open-pollinated heirloom tomato seeds this year from several of my favorites, and to return some of the love to WinterSown.Org by sending them back some of the seeds I save.