How to clean out candle jars for reuse: If you get the wax out before the water has completely cooled, do not pour the hot water down the drain. let the water cool overnight, and the next morning, the wax floated to the top and hardened.
Repurpose coke bottles to hold cooking oils and dish soap.
Cut off the top of a pour spout container and insert it into the lid of a mason jar. Great for spices you use a lot of, adding sugar to your coffee, storing yeast in your fridge, keeping dry/powdered milk, garden fertilizer, and so much more.