Vinegar works as a wood stain when you add a metal object in the mix and let it sit in a glass container for a week. A handful of pennies will produce a beautiful pale Caribbean blue stain. A wad of steel wool will give you a rich reddish hue. A combination of tea and a metal object in vinegar will produce a black stain.
Fill your sink with VERY hot water. Then fill each wine bottle with hot water & drop it into the sink. Next, add this secret potion: 1/2 cup baking powder, 1 Tbsp dish soap, 2 cups white vinegar. Once you add the vinegar to the sink, it will get fizzy for a second AND THE LABELS COME OFF. Good to know for wine bottle vases.