Fridge Tetris

Sunday is usually the day I prepare at least 2-3 meals for the week, or at least parts of it. This means that there is going to be a collection of new containers entering my fridge. The problem? My fridge is quite small and already holds a decent amount of sauces, condiments and other ingredients, so this means playing Tetris in the fridge. My fridge originally had an extra shelf, but I removed it and now have most things in stackable containers, which gives a bit more space. However, this is a trade-off, because if the containers aren't full to the brim, they're wasting space. For the most part, I use the ones from IKEA for three reasons: they are relatively cheap, they are easy to clean by hand (glass makes this so much easier with certain types of food) and their lids are pretty water tight. Sometimes I wish they came in more sizes, while still trying to keep the same lids. For smaller things, I use the same container system that I use for my spices. Having mostly towers of containers works pretty well. Everything else is somehow arranged around these. How does your fridge look like?