1. Clean up pet accidents by first blotting up the area and then adding vinegar-and-water solution to the area. Blot until it is almost dry. Then sprinkle baking soda over the area and let it dry. Vacuum up the residue the next day.
2. Consider this favorite homemade window cleaning solution: combine 1/2 cup non-sudsy ammonia, 1 cup white vinegar and 2 tablespoons cornstarch in a gallon of water. Use it in a spray container or wipe it on with a cloth.
3. Remove wallpaper easily by using a paint roller to wet the surface very thoroughly with a solution of equal parts vinegar and hot water. Or spray on until saturated.
4. Get decals off walls or doors by letting undiluted vinegar soak into them for several minutes before trying to peel them off. Repeat if necessary.