My wife's friend who came to visit a few weeks ago told us about a homemade cleaner recipe. Take one or two orange worth of peels and put them in a 1 quart canning jar. Fill the canning jar with vinegar. Then let the jar sit for 3 weeks.
My wife tried it out last week. It took a dark spot off the wall that a Mr. Clean Magic Eraser could not. My wife also added some to a bucket of water and mopped the floor with it. No sticky residue was left behind and the floor looked great.
Over the past few months we have used the cleaner to clean windows (diluted in water about 1 cup to a gallon) with streak free results and mop the floor.