Now that the gardening season has ended and you've picked the season’s last vegetables, let some plants go to seed and harvest them for planting next year. “Saving seed can be really fun and is a great way to learn about plants,” Weston Miller, a horticulturist with Oregon State University Extension Service, said. “If you choose the right types of vegetables, you can keep them going year after year without buying them again.” The easiest crops for saving seed are annual plants that self-pollinate, such as lettuce, beans, peas, peppers, eggplants and tomatoes. Collect seed from the healthiest plants and allow them to dry. Store seeds in tightly sealed glass containers in a cool and dark location and label with the type and the date. The refrigerator or freezer is also a good place for storing seeds that you collect and also seeds that you buy. Put small seeds in envelopes and label them. Place the envelopes in sealable freezer bags.