I bought some really neat cards at the learning store that might really help you come up with more ideas for stuff to do at home with your son. They were geared specifically for infants and had a lot of great ideas. I believe they are called Brighter Minds or Smarter Minds, something like that. I wish I could find them right now, but we are moving. They had ideas like putting toys in oatmeal containers and rolling them across the floor, taping paper towel tubes to the legs of a chair and dropping different objects through them, etc. etc. If you can't find them, just let me know and I can find out the exact name.