Teaching Addition with Popsicle Sticks - you could use any two different colored stuff around the house: straws, strips of colored paper, two different kinds of dried pasta/beans, etc.
Help your child gain finger strength and pinch/grip skills by creating a game with clothespins! They'll brush up on their fine motor skills and maybe work on their matching skills as well! http://learningexpress.com/skill-building/index.html
alphabet, beginning sounds, ending sounds, numbers, comes before, comes after, color words, number words- SUPER easy to implement! Easy to prep and store! SCORE!