Water stains on wood can be frustrating, but there are natural, eco-friendly ways to remove them without using harsh chemicals. One popular and simple method is to use mayonnaise. The oil in mayonnaise can help lift stubborn stains from wooden surfaces.

**How to Use Mayonnaise:**
1. Dab a small amount of mayonnaise onto the stained area using a microfiber cloth.
2. Cover the spot with a paper towel and let it sit for several hours.
3. After a few hours, check the stain. If it’s gone, wipe away the mayo and polish the surface. If the stain persists, leave the mayo on overnight.

If mayonnaise doesn’t work, alternatives like toothpaste (not whitening toothpaste) may also help. These methods are easy and eco-friendly, allowing you to restore your wooden surfaces with items you already have at home.