When my friend tried to use my computer he found it impossible to use the mouse because mouse pointer movement seemed almost random. When I sat down at the computer again and used the mouse I didn't have any problem using it at all, but on looking at what I was doing with my hand to smoothly move the pointer in a straight line, I was violently throwing my hand all over the place. I realized I must've adjusted to the detritus on the mouse ball over time as it accumulated and I was somehow compensating for the mouse's extremely erratic tracking by making countervailing erratic movements3. I thought it was pretty amazing that I could not notice that I was doing this and I always wonder if I'm doing some equivalent thing today.
I sometimes think about all of the mitigations I've developed to work around bugs. For example, when opening a new Google Doc, I used to immediately put the title I wanted into the doc. At some point, maybe ten years ago or so, Google Docs added some kind of delay such that the typing you do into the title box right after you open the doc gets overwritten, so I now have this habit where, after opening a Google Doc, I do something else and then I change the title. Over time, as Google Docs has had more and more features added, I've developed a series of habits that avoid all sorts of pitfalls (such as trying to search at the "wrong" time and getting the useless native browser search instead of the Google Docs search).
My feeling is that a large fraction of computer literacy and software literacy is developing a large library of these habits that you just do at a non-conscious level. These are often quite specific to the situation, such as a habit I developed when I worked at Microsoft of flipping my laptop's WiFi switch to off before logging in (which I noticed other people doing as well). This was because there was some service, which would often fail your login with "There are currently no logon servers available to service the logon request”. But if that service couldn't connect at all, the check would be bypassed and you could just log in.
— Dan Luu, in Bug blindness
I know I have a few mitigation techniques myself. I recommend reading the whole blog post on how people do not have the perception of the bugs in their software. Personally, I think the worst software I use is the one that does not get dogfooded (except for current operating systems). One of these days, I'll do a lengthy piece on the many faults of our academic record system.