Judy Batalion in the NYT:
"In all my research, I found no proven correlation between keeping a neat room and leading a functional, goal-oriented life. Lessons like respecting shared space and managing time can be achieved through homework or scrubbing the kitchen. And according to the clinicians I spoke to, the family friction that erupts when parents force messier kids to be neat can cause real destructive stress."
Read the article here.
In other words, messiness is okay. One reason less to feel guilty. Soon we will miss our guilt trips.