One thing I forgot to mention in my previous post is that I save seeds. I know that sounds silly for an apartment dweller to save seeds when there is no place to plant a garden. But I save them for two reasons.
The first is that when things get bad, I have children who have lawns that can be converted into garden plots, should said children finally see the error of their ways and discover that raising food is a good thing. To be fair, one of them has done this with a couple of raised beds. Should seeds become hard to get, they need look no further than Mom's shelves.
The second reason is that my building has a communal deck large enough to raise several different kinds of plants in buckets or tubs. Someone in a newer building than mine (this building was built in the late 1800's) probably has a balcony for each apartment that can be used as well. Over the winter I plan to research the best way to garden in containers. In the meantime, I have purchased seeds and I save seeds from produce, mostly from the Farmer's Market. I am aware that hybrid seeds will not always produce fruit just like the fruit the seeds came from. I don't care, as long as they produce something edible. And sometimes seeds from purchased produce will not grow at all. So to test those I have saved, I sprinkle a few seeds on damp paper towels, wrap that in a damp kitchen towel and wait to see if the seeds sprout. If they do, I package the remaining seeds and mark them, storing them away from heat and light.
Another idea I saw was to sprout seeds in a quart jar. Google "sprouting seeds" for instructions. There are lots of websites and videos on how to do this. I have not tried sprouting my seeds as yet, but will be giving it a go over winter. There are seed sprouting kits in stores and online. I see no reason not to buy seeds in bulk and use only those according to your own tastes (some might like radish sprouts while others may not, etc.). Seems to me this might be a good way to add fresh green things to a person's diet.
We apartment dwellers may be challenged as to storage and gardening space, but with a positive attitude and a bit of research, there is no reason we can't find ways to accomplish what we set out to do.