You certainly cannot beat these two images for some decorating ideas! I love collecting things however my collections pale to insignificance with these two examples.
The collection of white opaline glass on the white shelf against this blue wall is stunning. The white creates such a dramatic impact against the blue.
The next one of white ceramics in this white cabinet has just as much dramatic impact as the blue and white above, but in an entirely different way. Just the small hint of brown and black add a just a bit more savoir faire to an otherwise stunning display!