My F-I-L uses a 50/50 mix of rubbing alcohol and lestoil in a spray bottle for the cars.
I swear by it. spray on liberally, give it a minute to soak in, then re-wet and rub gently. As previously noted, it does remove the wax also.
I was going to suggest that my wife use it on our floors last wknd, but she looked like she was having a great time scrubbing on her hands and knees, so I didn't bother her.
