I don’t worry about the seeds, except for green onions. For slicing onions etc, I just buy the onion sets. Likewise with garlic, I usually just plant whatever I have left from those that I purchased in the super market. I have sometimes ordered garlic bulbs, but I have just as much luck with those from the super market. Most of my recipes call for garlic powder, hence I don’t need many cloves.
That’s helpful to understand the universe of approaches! Thanks, greeneyes.