Can I Paint My Walls White?

Don't worry -- I'll be taking this issue up with Sanders the Paint God very soon. But for now I'd like to know what you think: When is it ok to paint your walls white and when is it a bad idea? New House has fabulously high ceilings in the family room and big sexy windows, but it also faces North and is very shady.

cream paint white trim

I think I could even be happy with a warm cream -- something translucent but still palpably present.

Light colors in dark rooms -- yes or no?