Basement bathroom door for cleaning supplies. Kitchen to basement door for pantry items. Back of girls' door for barbies. Inside girls' closet for shoes. Inside my closet door for belts and scarves. Entry door for shoes, mittens, etc.
For all those art supplies. DIY project du jour: Shoe box + toilet paper tubes (and/or paper towel tube pieces) = storage for pens and other office/art supplies (via Aunt Peaches) More paper tube repurposing ideas: here.