For me it's mostly a strong need to have everything I need on a daily basis exactly in the same place every time I need them. Everything else can go to hell in a hand basket, but if my coffee maker, cup and coffee isn't right where they should be, as well as wallet, keys, and anything else I need every day, multiple times per day, I go off the wall until I can find them. My wife likes to occasionally rearrange things, because her life was all about change. She moved so often, change is her normalcy. I grew up to two different homes. The second of which I was in for eighteen years. I hate too much change. All she has to do is move my coffee maker from the corner of the counter, two feet over, and I can't even see it right off. My first reaction if she does that is, "Where the hell is the coffee maker," and I'm immediately annoyed and think it's gone. I do find most of what she moves fairly quickly, but it's still like an adjustment to me I really don't like making. If my wallet isn't in the drawer where I always keep it, I freak, and often cannot find it. Sometimes i do it to myself accidentally, and when I do it can sometimes be days or even weeks before I find what I've misplaced, just because I set it down somewhere unusual for a moment, then forgot where it was.
I don't have very many things I have to have in place all the time, but I absolutely MUST have them in place, or it ruins my day.
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I'm not likely to be around much longer. As before when I first signed up here years ago, I'm finding that after a long hiatus, and after only a few days back on here, I'm spending way too much time here again already. So I'm requesting my account be locked, banned or whatever. It's just time. Until then, well, I dunno...