You probably already have all the ingredients for this.
Dr. Oz Teeth Whitening Home Remedy: 1/4 cup of baking soda + lemon juice from half of a lemon. Apply with cotton ball or q-tip. Leave on for no longer than 1 minute, then brush teeth to remove.
This is crazy. Mix 1/4 c Listerine (any kind but I like the blue), 1/4 c vinegar and 1/2 c of warm water. Soak feet for 10 minutes and when you take them out the dead skin will practically wipe off.