mintellect
attention gamers,
My personal headcanon for this is that Isabelle is the one doing all of the overnight town preparations - burying pitfalls and gyroids, hiding coins and furniture in trees, possibly even burying un-assessed fossils.
I like to think that she does it to make our mayor happy and to make sure we have new things to discover every day. After all, she's such a good puppy! XD
Someone made a comic of that: