I'll admit, my shoes are not organized in the bottom of my closet. Maybe yours are. Either way, you can play a simple game with your toddler.Take out of your closet 6-8 different shoes. Hold up a shoe (say the color or style) and tell your toddler to find the other one and place them in a match on the floor.
Very simple but it is fun to watch them "hunt" for the right shoe.
Can you tell what shoes I love?