Did you know that children that spend more time outside laugh more? It seems that little ones these days spend more time in front of the TV or playing video games then using their imagination. The game industry is getting children younger and younger it seems, as there are now video games for toddlers. I know they are educational, which is nice, but nothing compares to using the imagination. Playing outside can teach children how to be adventurous, and even self-motivated.
Sometimes it doesn't make since to go outside, maybe it is to cold, or even too hot. In those cases you can spend time inside with the same imagination. Build forts out of blankets, or even make some home made play-dough.
Spend time laughing with your baby. Those are things that you and your child wont ever forget.