Get that scum in your tub and sinks the easy way with only 2 ingredients!
To a small dish, add baking soda.
Pour lemon juice over baking soda. It will begin to foam immediately.
Mix with a spoon to form a thick paste.
Use immediately on your tub, tiles and sinks by applying a thin layer all over with a sponge, gently scrubbing any tough or extra-dirty spots. Let cleaner sit for 10 minutes, then rinse well with warm water until any gritty residue is gone.