So today I took some long skinny battens, cut them up and stuck them in to create two new shelves and here is our gloriously organised shoe cabinet now:

COMING SOON:
- the frames I've spray-painted for the boys' room (unhung because I'm waiting for the prints, which I'll order after my client pays me later this week)
- new 8-picture photo wall in the kitchen with food photos in (I have the frames but am waiting for the prints, which I have ordered)