If your toilet bowl could use a cleaning but you're out of traditional cleaner, use mouthwash instead.
To keep cookies and other baked goods soft after baking, add a slice of store-bought white bread to an airtight container.
To have an ice cold can in just a few minutes, put your drink in a large pot and cover it with ice. Fill the pot with water, add a couple cups of salt, and stir until the salt is dissolved. Your canned beverage will magically be cold.
Tossed onto a hot grill, fresh onions are great for more than a savory kebab. The pungent bulb can also help clean the grill itself.