One of the bonuses of an organic and sustainable garden is saving money. Once you make the basic garden, renewing it each year costs very little. Saving seeds is one of the integral parts of this plan. Planting non-hybrid seeds enables the gardener to save seeds that will grow in the next year, expressing the same traits that it had this year and the years before. Your large tomatoes will be as large and your peppers will ripen to the same color. Carefully save your seeds and you'll have a supply for next year without spending any money.
Peppers can be harvested either green or ripe, and the seeds can be harvested right along with them. After eating the peppers, spread the seeds out on paper towels to dry. When they are dry enough to snap in half instead of bending, put the seeds in an envelope to save for next year.
Tomato seeds take a little more work to save, but they are worth it when you get a variety that you like. Take the gel along with the tomato seeds from the center of the fruit, and soak it in a bowl or pail of water. Allow to soak for 24 to 48 hours. The good seeds will sink. Rinse off and allow to dry on a coffee filter or paper towel before storing.
Allow cucumbers to ripen past the time where you would pick them for eating. Overripe cucumbers will give the greatest numbers of fat and viable seeds. Rinse the seeds in clear water and dry for a couple of days until they are no longer pliable. Save in paper envelopes stored in an airtight container.
Beans, whether wax beans, green beans or black beans, can all be harvested in the same way. Allow the bean to stay on the plant until the pod is completely dry and brittle. Harvest on a dry and sunny day to remove all dew from the plant. Pick the dried pods and break them open to remove the beans. Package in separate envelopes and store in jars or other airtight containers.