I solved my toes numbing by placing a separator between two toes on each foot just to keep them space better. My toes are "scrunched" together and my feet narrow. The separator I've been using is these foam single toe things they use for manicures. The ones like these -
Amazon.com : Lure Neat Feet Toe Separators (Digits) (Single Pack Assorted Colors) : Toe Separator Salon : Beauty
They work great for me by keeping my toes touching the shoe and not binding up with each other. I notice a big difference when I wear them and better yet, I'm find in it's changing the way my foot behaves. It's spreading out more naturally.