Just Two Drops and Wipe It Away: Restore Yellowed Window Frames to Their Former Whiteness

White plastic window frames can yellow over time due to water and mineral marks left by the potted plants we place in our homes.

In kitchens, this staining can become much more stubborn due to the accumulation of steam and cooking grease. Special cleaning sprays sold on the market are not only quite expensive, but they can also leave…