You can clean old hardwood floors with vinegar but just don't over saturate the hardwood floors and be sure to allow the hardwood floors to dry out.
The best homemade floor cleaning solution is a mixture of water, white vinegar, rubbing alcohol and dish soap.
Mix together some warm water, 1/2 cup of white vinegar, 1/4 cup of rubbing alcohol and around 1/8 tsp of dish soap and mix together in a bucket.
Then use your mop to mop the floor with the homemade floor cleaning solution.
You can also use just dish soap or some vinegar to mop and clean your floors with.
If you have some stubborn grime on your floors you can also sprinkle some baking soda and put vinegar on the grime on the floor and mop the floor with the baking soda and vinegar.
A simple mixture of Dawn Dish Soap and Vinegar mixed together makes a great homemade floor cleaning solution that works just as well as most commercial floor cleaning solutions.
Simply mix one part Dawn dish soap and two parts white vinegar, in a bucket and mop the floor with the soapy mixture.
If using plain white vinegar to mop the floors with you will not need to rinse the floor.
There's no need to rinse your vinegar-mopping solution from your floors.
Keep in mind that your floors should be drying very quickly if you've wrung out your mop sufficiently.
When mopping a floor you most often need to also rinse the mop out to remove dirt before going over the floor again.
Many cleaners spray a ton of floor soap, believing "wet equals clean."
Then they forget to rinse out their mop pad, resulting in a floor mop that is fully saturated with dirty water.
Continuing to use the mop pad on the floor leads to smearing dirt, not lifting it.