1/3 of them don't ring a bell, but it's scary that I can recite (and sing) the whole jingle for 2/3 of them, but I have a hard time remembering what all has happened just this past week. Lots of trivial things taking up the room in my memory instead, I guess.
I believe that is exactly what happens to memory, it gets too full....and things will pop up hours or even days later, they are not obviously actually forgotten it just is taking longer to sort through all the dreck