You can spray this on grimy oven and BBQ racks (leave on over night, rinse off in the morning for best results), on your shower tiles to remove soap build-up, and anywhere else you have hard-to-remove substances. Into a spray bottle (get one at the Dollar Store) mix 2 oz Dawn dish liquid, 4 oz lemon juice, 8 oz white vinegar, and 10 oz water. Spray away to make your home sparkle! This is very powerful, so always test on delicate surfaces in an inconspicuous place.