Tip #1: Make your own wiper fluid.
Next time you run out of windshield-wiper fluid, think twice before running to the store. Traditional wiper fluid, due to the main ingredient, methyl alcohol, is extremely toxic when ingested — a danger for kids and pets. Instead, use vinegar and water to clean your windshield. Another option is a mixture of water, isopropyl alcohol, and dishwashing soap. If you're in an experimenting mood, try mixing a green cleaner you already have at home with water to see how well it works.
Tell us: What are your favorite DIY cleaning solutions?