My playing time did drastically go down. But I am still doing daily stuff. It's so happens that my biggest threat is really the lack of storage space! I wish Nintendo would give me unlimited storage for my hoarding needs.
It can be a little expensive, but creating a second player and upgrading their house should give you access to extra storage. You can even use the house to store DIYs. The only real problem I see is giving up a little space on your island for the other house.
I might give in one day if Nintendo doesn't grant my wish. (I highly doubt they will though.)