Make your own inexpensive, no scrub Ceramic Tile Cleaner using a few basic ingredients.
1/4 cup baking soda
1 cup ammonia
1/2 cup white vinegar
1 gallon warm water
Combine all of the ingredients in a bucket, stirring well until baking soda is completely dissolved. Apply the cleaning solution using a nylon brush or scrubbie, or scrub sponge. Rub gently, or leave the solution on for a few minutes to loosen grime. Rinse well with clean water.