I'm a gardening noob, so for me, when I first accidentally discovered how easy it is to gather seeds for next year from certain plants, it totally blew my mind. Next year, my garden will be completely different, and I'm going to see if there are any good places to get better tomato seeds than ones from the store, and once I start growing them, I'll do what is necessary to keep seeds for the next year, but for now, I'm sticking with two of the most outrageously simple seeds to gather. I mean it, it's a complete outrage! How DARE it be so simple? Getouttahere!
Cilantro! It's delicious and easy to grow, but it goes to seed really quickly and easily. Meaning flowers grow and the yummy green stops growing and it gets covered in seeds and then the plant dies off and what remains are stalks covered in seeds. The trick is to just keep planting cilantro! Never stop all summer long. Plant one a week, or more, whatever, it'll be fine.
It seems like cilantro is best when it's pretty young and each plant doesn't give you much. You really have to grow a lot of them, kind of like this, except, actually, much more would be better.
Hey, also, just because it took a really long time for these to grow and bloom, and then they were pretty short-lived, I want you all to enjoy my lovely sunflowers: