I have the same set up as you. My day home is all on the main floor (living room and kitchen). I had the same problem where it was like toys EVERYWHERE!! I took half of everything and packed it up into bins that were all the same size and could stack into each other. Cars in one, books in one, little people in one, etc. Now every 2 weeks I rotate them and put what I can in the spare room closet and under the bed (out of sight out of mind). I have a few bigger toys that get rotated too (castles, farms, car station) and they just sit on the floor of the spare room. Even the toys that start to drive me crazy like these silly drums that my brother-in-law bought us (funny joke, right?) all get dumped into that room and I close the door. Not sure what I will do when we have another child as that will be their room but until then this is what works for me. Less toys to clean up, weird as it is less fights too and plus they get excited whenever a new rotation starts as its like they are new again. And I get my house back! Hope that helps.