I learned to get up the stairs on my own in one day. Getting brave enough to slide down by myself took a little bit longer, but now I can't imagine ever needing help. I can even slide down large slides at the park on my own now.
Other fun backyard fun activities include playing with the hose and goofing around:
Sometimes I decide to bite people when I am teething. If you catch yourself near me at the wrong time, then this may be the last thing you see before the kill...