If you’ve got an empty one-gallon plastic milk jug, here’s an easy way to upcycle the jug into a watering can for plants. Just drill three or four evenly spaced, 1/8-inch-diameter holes into the plastic cap, creating a sprinkler top. Now you can very easily and neatly water potted plants, with fear of overwatering. And this tip comes in handy when a plant might be slightly out of reach. Just give the bottle a little squeeze and shoot the controlled water streams directly onto the plant.