Here's a handy tip for those who do not have an etager (like me). But sometimes you could use one, this idea came to me:
Just put a bowl (upside down) on a large plate and put a small coffee cup on the bowl and a smaller plate on top of it and finally a small saucer. If you like to put a small flower or decoration on your plate, it will look much nicer.
If you want to play it safe, stick a small piece of plasticine on your plate. It is best to "build" the tiered storage together at the designated place.