As true as gravity will keep your ass from floating in space, so will empty flat surfaces accumulate clutter in your home or office. That is because clear surfaces provide unstructured, hook-free, often-vertically-unlimited storage. If you don’t believe me, go ahead make a clear surface–table, desk, counter-top, or even inside a drawer–and see how long it takes for it to get cluttered up with all varieties of stuff: unopened mail, brochures, dog leashes, pencil sharpeners, etc. Our brains seem to be telling us "don’t know where to put this crap, stack it on that table, sure you'll get to it soon."
Here is another truth that will help you deal with this issue, clear surfaces tend to be magnets for stuff we don’t need, use or even want. These clear surfaces are especially useful for holding stuff we don’t want to deal with. Why do you think that “to table” something means to postpone the issue?
If you are looking to de-clutter and simplify your home, try removing a surface or two–one less end table, even one less dresser. If this is too much for your cluttered mind, create limits on the surfaces you have by adding a small tray or small basket to collect your precious I-don't-want-to-deal-with-this stuff (hint...smaller the tray, the smaller the clutter). Without easy places to deposit and pile stuff, we often find ourselves compelled to deal with it (or toss it on the floor, I guess, but tripping on it will force you to deal with it).