Your favorite fruits and vegetables can get a second, third and even fourth pass at your plate if you recycle your seeds.

Natural Selection
Determine which seeds you want to recycle. Pick from your plate or from your garden. These tips work in general and especially for harvesting seeds from tomatoes, squash and melons.
Avoid fruits and vegetables of the hybrid variety because the seeds you harvest may not come out like the original fruit and vegetable.
If you had a tomato that did not have much flavor, do not spend time harvesting its seeds. The same goes for any other fruit or vegetables. Pick unblemished specimens with the best form and taste.

Harvesting Seeds
The best time overall to harvest seeds is when they are ripe.
If the seeds are wet, such as tomato seeds, you need to clean them before you can dry them. To do so, put the seeds in a clear glass bowl and then fill it with water. The best seeds will not rise to the top. In fact they will end up on the bottom of the bowl. If there is any pulp remaining on the seed, then gently take it off with your fingers
After you rinse the seeds and remove any pulp, it is time then spread them out to dry. Be sure to have enough room so the seeds are not touching. Wait until they are completely dry. Depending on the climate where you live, thoroughly drying your seeds will take up to two weeks.

Storing Seeds
Once your seeds are dry, store them in a cool, dark, dry place.
Store your seeds in envelopes or glass jars.
Do not forget to label your seeds. Include the name of the type of seed you are storing and mark down the day your harvested the seeds.