What is the best cleaner for hardwood floors?

PLain water, mop or rag wrung nearly dry. Murphy's is bad for hardwood. Some people use "Old English" in matching color to take care of scratches, but should be plain water or very, very mild detergent.

If the wood is not sealed: then do not use water alone as it will damage the wood.

To get rid of grease and dirt and help to preserve your floor, The Reader's Digest suggests:

4½ cups liquid paraffin

1½ cups of glycerine

¼ cup household ammonia

¾ cup turpentine

Combine the ingredients in a wide mouthed jar.

Store away from heat, away from children.

To use:

Add 1 cup of cleaner to 2 litres of warm water in a bucket and with it sponge-mop the floor. Can rinse afterwards if you want.