Lots of backyard time inevitably means dirty feet. So how do you not track dirt and sand into the house? Set up a little waterproof box filled with flat stones near the backyard door. Then, before the kids come back inside, have them stand in the box and rinse off their feet. Voila! Don’t have a fire pit to make s’mores? No problem! Get a simple terracotta pot and line the inside of it with foil.