For icy steps and sidewalks in freezing temperatures, mix 1 teaspoon of Dawn dishwashing liquid, 1 tablespoon of rubbing alcohol, and 1/2 gallon hot/warm water and pour over walkways. They won’t refreeze. No more salt eating at the concrete in your sidewalks
Brilliant solution for serving platters that are not used that often: Build shallow drawers into the toe-kick spaces (those 3- or 4-inch spaces below base cabinets) in your kitchen or bath. Outfit each drawer with a touch-latch release so you can easily open it with a light tap of your toe.
Planter from wine bottles. The home site for this is in Japanese or Korean type language, but it looks like you'd have to get these well established with the tops down and the plants up before you could hang them this way and not have things not fall out.