It's a rich-world problem for sure, and while Having Too Many Shoes Syndrome used to be the domain of women, I've visited the apartments of just as many guy friends and encountered that shitstorm of kicks cluttering the vestibule. If you're a collector like Turtle from Entourage with access to movie-star funds, you have a special closet built to house them, but most of the people I know just have them scattered about.
Though not a shoe-collector myself—at one point I lived with more dogs than I had pairs of shoes—I'm digging the Shoe Trap.
It's nothing more than a modular system of boxes lined with foot-funk masking cedar, clear front doors and rubber grips on the bottom so you can stack 'em, making your own little shoe skyscrapers. They're like Lego for Imelda Marcos (or Turtle, if he wasn't living on Vinnie Chase's dime).