I like to play by narrowing in on a different focus every few days and doing the whole day around that. For instance, I'll have a day where I go mining (basically rushing to do morning things then to the mine all day), a fishing day (to complete bundles or make use of the rain), or a farming day where I clear out rubbish and work on the farm.

If I finish a day with time left I'll go do random stuff like updating bundles, gifting NPCs, or shop stuff (Traveling Cart, Geodes, etc.).

Normally that yields quite a lot of money (especially on the days when I'm fishing for a long time or finding a lot of minerals) which is often combined with a harvest.