The easiest kinds of plants to learn to save seeds for is peas and beans. If you already save dried peas or beans, do exactly the same thing but save the beans or peas to be used as seeds. If you are unfamiliar with this process, it is very easy. The pea pod in the picture is an Amish snap pea. As the season for them passed, I left quite a few pods on the vine to dry. Once the vines are completely dead and the pea pods are dried, then collect them. This may be a month or so after you would normally harvest them to eat. Then all you need to do to get to the seeds is simply pop open the pod without sending the peas flying everywhere. Be sure that the peas are completely dry and store in an air tight glass container. These seeds can store well as long as five years. Beans and other kinds of peas are saved exactly the same way.