I think at some point I'm going to do an 'aliens invaded' that starts off something like:

Althea woke up in her lovely, normal, comfortable bed with an actual mattress, and nothing dripping anywhere. Her room had walls, and a real ceiling. The electricity was on, and she took that for granted. Her breakfast was, at that point, mundane. Normal life.

At this point, the roads were full of cars, and Althea was one of millions of commuters setting out to an office job she also took for granted, heading out onto a road with a view of green fields and intact houses. Billions of people were living a routine day, or asleep.

Althea wasn't looking at the sky. Not until (and so on and so forth)

That's the rough beginning, but it could be fun to try to make work, even if it never gets out of a draft folder.