Or...check out the hoarders show. I will admit that sometimes I watch that one myself, I always find myself cleaning a lot during it LOL.
The kid mess...well, I have four and am expecting another. Though we've gotten rid of a lot, especially as my older girls aren't really into playing other than building legos and such. We still have cars, little action heroes, abc tiles and letters and little pet shop toys. It's amazing how quickly then can turn into a mess. I keep them on shelves up high, when DS asks for them I give him the amount (generally every category fits into a shoe box). He can only do so much damage that way LOL.
I find that getting rid of stuff, every year, really helps immensely. Because people still give us gifts, etc. for the kids we still wind up with more stuff. So as the new comes in we need to bless someone else with what we're no longer using.
But, I remember back when our home was so free from anything, just furniture. Nothing ever on the floor or anything. I remember those days. I'm certain eventually it will get back to that. It would be great to sort of 'section off' an area. However, we have that open floor plan and rooms sort of flow into another and some don't really have much of a border so things drift over easily it seems!