What fast, effective, but dangerous household cleaning technique do you use?

I needed to clean the screens on the porch so they look nice for company. They were filled with dust, pollen, dirt and spider webs and looked awful. I figured since they were metal and the dirt was flammable I’d leave them in place and try using my Bernzomatic butane torch to burn off the dirt. Wow! I pulled the trigger and… Woof ! The webs and dust caught fire and burned away instantly! I was able to clean eight, 3.5×3.5 ft screens in less than 2 minutes! The method worked great!!!
Now that’s a tip that you won’t see in a Heloise Helpful Hints book.
Do you have one you can share?

I promise to sign a legal waiver absolving you of responsibility for any injuries, property damage, or deaths that result from trying your helpful hint.