Large stripes are easier than small ones and would be nice for a baby's room (different colors though).
These may also be nice in a baby's room
Good height for a dresser/changing table for baby's room
Put toys in bins so they can be moved from one room to another. Changing the environment of where the toys are played with can make the toys feel new again.
Line a wall with drapes!
Something large placed above a window can draw the eye up and make the ceiling seem higher.
Put books stacked on the lower shelf of the nightstand