A folder to store habits. For example, I take multiple supplements and would like to be able to group a bunch of separate habits into the one folder. This would clear up the habit screen and also let me have a reminder for the "Supplements folder" whilst in the folder I could check off each one as I take it.
This would also allow the creation of routines that send one notification (for the folder) instead of getting 5 notifications etc at the same time for each different tracker that I want to accomplish in my routine.
This also accomplishes the "Break big goal into small steps" feature request as well!