So, I purchased a couple of organic acorn squash this week. Instead of putting the seeds into the compost, I washed them off and will save them for planting. We do this with all of our veggies that we grow. Because of this, we now have over 4,000 heirloom tomato seeds; 2,000+ varied squash seeds; and many, many, many others. After washing them off, we dry them, and then put them in labeled ziplock bags. You can use empty baby food jars, or empty medicine bottles. Get creative with reusing items. We use the ziplock bags because we can keep them in a shoebox, and it takes up very little space. You do whatever works for you. Oh, also, consider keeping your seed collection in the refrigerator, or cold storage. The seeds keep longer if they are kept under 50 degrees F.
I never thought of saving seeds before John said to. So, when you have organic, or homegrown veggies, consider saving them! Let me know if you have any questions, or comments. We love feedback!