I usually keep more 22s, powder, primers, and bullets than I need. I like to keep about 2 years worth on hand. Primers are the things I have most often almost run out of, and I think I've got myself trained finally to take a longer view of things. I also have loads worked up to use the major primer models, so if one is not available, I can fall back on another.
Small comfort today, though. We've had a rough ride, from the sky high prices on lead shot a few years ago, to the situation for cartridge components since the Bush/Obama wars started.