If you store your shoes in a shoe cabinet - and not your staircase (haha!), here's a simple trick I learned from Kat of Space That Works.
Instead of storing shoes this way... with shoes facing the same direction...
Store them this way... with one shoe facing forward and the other facing back.
I swear, this allows you to fit an additional pair in the same closet! Plus, you get to see the type of heel of your I'm-sure-multiple black pumps. And it lets you see if your heels are scuffed - something you never see when all your shoes are facing forward.
Try it. It works!