Here’s a few from this great article:
- All types of citrus rinds, apple peels, pomegranate skins, and other fruit trimmings can simply be dried on a rack or in a food dehydrator to make homemade potpourri. Sprinkle a little “liquid potpourri” (available at craft stores) on it for more flavor if desired, or dose it with the dregs of perfume or cologne when you finish up a bottle.
- Peaches are high in potassium and Vitamin A, which help to revitalize skin and keep it hydrated. Put a little sugar on the pulpy side of peach skins and use as a gentle face scrub.
- Lemon, lime, and other citrus rinds and pulp/juice are high in citric acid, which makes them great for polishing brass, copper, and other non-ferrous metals. Sprinkle on a little baking soda and the polishing goes even faster.
- Peanut shells burn slow ‘n’ smoky, so add a handful to the charcoal next time you’re grilling. Soak them in water ahead of time if you think of it, and let them dry a bit before you put them in the coals – that way they’ll burn even longer.