What is the best way to remove old wallpaper effectively and efficiently?

The best way to remove old wallpaper effectively and efficiently is to start by scoring the wallpaper with a scoring tool, then apply a wallpaper removal solution or a mixture of water and vinegar. Let it soak for a while before using a scraper to peel off the wallpaper. Finally, clean the walls with warm water and a sponge to remove any residue.