My grandmother taught me this trick to clean yellowed plastic fan blades before the heat wave hits with 0 effort. Here’s how it works

I fill a tub with enough warm water to fully cover the blades, usually 1 1/2 gallons. Then I add 2 teaspoons of grease-cutting dish soap and 1 cup of 3% hydrogen peroxide. I swirl the water with my hand to combine it, then lay the blades in flat.

For blades that are very dingy or have sticky residue, I bump the peroxide up to 2 cups per 1 1/2 to 2 gallons of water. If I’m out of peroxide, I use oxygen bleach instead, usually 1 tablespoon