It's happened I've been busy putting up a shelf, and I set down the power drill, and when I turn to pick it up, I can't see it. Panic search for it, till I give up. Then there it is. The same has happened with a big jar of instant coffee on the cooking surface while I was making a coffee.

The mind plays strange tricks. There's a "science" fiction book called Too Many Magicians by Randall Garrett, about a world where magic works, and one of tge key spells is one that doesn't really involve magic at all, it,s an invisibility spell so the thing is unchanged and present all the time, but people looking at it just don't see it.