Let us suppose that one day you want to make a music video, so you pull up your list of song ideas, and find that you are completely out of song ideas.  Every idea you had has already been released as a music video by you.  So, now you need a new song idea.  Would you rather actively try to make a new melody/lyrics and work for it, or instead just go about your day-to-day life until a song idea comes naturally to you?  (Or would you do something else?)
i do new song idea generation sessions ('songgen') habitually every time before doing a new song/video. and then the new ones are added to the list for selection, and then a selection is made from the total list