Gotta bunch of clutter sitting around? Try the basket method of decluttering:
Grab a basket or box and walk around the room, picking up items that are out of place.
Go into the next room and put away the things from your basket that go into that room.
Pick up items in that room that do not belong there and place them in your basket.
Continue through the rooms in your house until the clutter is gone!
You'll probably need to make another trip through the rooms to unload the remainder of your basket.
You may want to provide baskets for each family member to retrieve their clutter throughout the house, too.
If something in your basket doesn't have a home, try to make a quick decision as to where it should live.
More on decluttering:
Three Steps to Decluttering