I believe that I have successfully developed the habit of keeping the front doorway clear. I come home, hang up coats, put my bags away and keep my inbox reasonably sane. I put a memo board inside the front closet to help remind me. It's been great and was dated 12/21. I think I can add something to this now.
Keep sink clear - On the positive side, it's in the main "public" area of the house, but I don't really care if I have a sink full of dishes.
Keep dining room table clear. Again, in the public area, but DH says that would require his cooperation. Now we can eat at the table, but there are still a few things on the ends. DH is totally against this.
Keep my nightstand clear - This would have most positive effect on MY life. I spend a lot of time in bed nursing, but now the baby is standing, crawling and grabbing. But it's not where anyone can see it.
Keep dresser clear - Again, not in the public area and it would certainly lift my spirits to see my lovely dresser, but the clutter there doesn't interfere with anything like the nightstand clutter.