What is the best method to clean old oak furniture?

Murphy's Oil Soap will work!

I use Old English on all our old furniture. It comes in light or dark, depending on your oak (we used to have light wood colored oak). I have also known friends that use Murphy's oil cleaner. Both these products should be available where furniture polish etc is sold. I know Old English is sold in the furniture polish section, although it is great for cleaning anything wooden (I use it twice a year on my kitchen cabinets too). Hope this helps, Susan.

I like Murphy's soap oil for my wood that needs cleaning.

There is a product from Home Depot called Krud Kutter that cleans cabinets very well.

I always wash furniture with a mixture of water and vinegar. If it's really dirt, I use Method spray cleaner, which is really gentle but works well on dirt. If the wood is dry, it needs oil. I love Miss Mustard Seed hemp oil to refresh old wood. It even disguises scratches.