These are probably so basic, but curious:
If you change a diaper that's only wet, not dirty, do you still use a wipe? It's only really recently that she started not having a dirty diaper with every change!

When you put diaper cream or aquaphor on do you use you finger, or rub it into the diaper then rub the diaper on the butt?

Also- hoe do you know when to go up in sizes- leaks?