Climbing stairs like crazy

Maddy loves to climb stairs. Actually, she likes to move. She does not like to sit still for any reason. Well, unless she is sick. But even then, she gets really grumpy when she's held too long. We finally opened up her activity center to sit against the wall. She likes it much better now. She doesn't like to be in her walker or other things that confine her too much. She will, but just for short periods of time. It's kinda funny to watch her. She changes too quickly.