Before I started with my own storage system I got some inspiration from what other people had posted. I hope to provide part of this information now myself.
I've gone for a fridge slide for a 50l Waeco and two drawers.
One drawer is for the kitchen with 2-burner stove and gas bottle, space for a plastic sink, an extra table and a side-facing drawer for cutlery and the like. Both, table and side drawer, have push-to-upen rails.
The other drawer is for food, pots and pans. Only special thing about it is the variable dividers to keep things organized in different situations.