Gaps and grooves

Have begun scrubbing the walls upstairs (although these photos were taken before hand), started noticing all the gaps between the walls and ceiling...

and walls and floor...

then it dawned on me that while the gap at the floor is due to settling and there is a base moulding in place, that the ceiling gaps (while also due to settling) had no mouldings.

Last night I stopped at Home Depot and picked up mouldings

1/4 round for the baseboards

A simple pattern for the non angled walls