Purify Water
If you ever find yourself in need of purifying water, whether it’s for a study, an experiment or any other home usage, you could just add some hydrogen peroxide to regular water, and give it some time to mix. After a few moments, you should have a mixture that is very close to purifying water. Just don’t drink that, it probably won’t do any good to your digestion.
You could clean with it, remote dirt from surfaces, clean old books, some electronic devices and even old figurines your grandmother left you in her will. Make sure you use gloves while working with the purify water, you don’t want your hands to get soaked with it for a long period of time.