For the money, the most versatile piece of furniture I've found has been HEMNES Shoe cabinets from IKEA. At just $99 each, The four-drawer version is nicely shallow... just 8-5/8" deep... and since it mounts directly to the wall and there's no rear legs to push it away from the molding, there's no wasted space. On top of that, the drawers themselves are deep and spacious so they are actually useful. Not just for shoes (though they are great for storing shoes) but for all kinds of things (the one in my kitchen holds placemats and napkins!).

Once I found out that I wouldn't be able to wall-mount my SONOS One speakers as I originally planned, my first thought was to purchase a couple of HEMNES units, drill holes in the top, then hide the SONOS cords behind them. They're the perfect height, allowing the speakers to rise just above my couch...

Since the table-top on these extends from the ends of the cabinet, I had to modify them slightly so I could get the two units to sit flush against each other, but they turned out great. Even more importantly, they work perfectly for giving me excellent surround sound.

And, as a bonus, my LaserDisc collection now has a home. A perfect home, actually, since they are stored vertically, but pull down at an angle so I can read the spines easily...

It's kind of weird that I now have seven of these shoe cabinets in my home considering I don't own many shoes, but they're just so versatile and functional. The shallow depth also means they can go just about anywhere. Yes, quality control at IKEA is shitty and you may get a defective part that will need replacing, but if you've got a tight spot you're looking to fill, these are definitely worth a look.

Something tells me I haven't purchased my last Hemnes shoe cabinet.