An important thing to keep in mind when doing activities with babies/toddlers is that just because they crawl/walk away doesn't necessarily mean they are done playing. I can't even count the number of times Izzy picked up an item off of the contact paper and walked away to explore it only to return a minute or two later to find another item to explore. If I were to clean up his activities immediately after he walked away the first time I would be cutting his exploration seriously short.
Cost: $6 for contact paper
Skills learned: Colors, fine motor skills, the concept of 'sticky'
Age: 9m+
Rating (out of 4 stars): 3