Water Rings on Wood - How to Clean Up After a Party - 13 Lifesaving Tips - Bob Vila
Don't Put a Ring on It
Next year, remember to make enough DIY coasters for all, but for now, here's a solution for white water rings. Create a gentle abrasive by mixing a teaspoon of salt with a few drops of olive oil. Rub it gently into the ring until the spot is gone. Massage some furniture polish into the surface to finish.