We're about to replace the cupboard doors on our kitchen cupboards.
Currently they have a trim on the top and the bottom. I've had a look and I think it's just screwed on, so we probably won't replace it and just leave the bottoms of the cupboards plain.
However, what I'm thinking about is the tops of the cupboards. Could I change the height of the doors so that they go right up to the ceiling (currently empty space above cupboards of about 20cm) and then use the top of the cupboards for storage? Only problem I can forsee would be needing a new bit for the end of the run of cupboards, but I could sort that I think. They're not particularly tall cupboards at the moment (only 1 integral shelf, so two useable shelves) and so this would buy me a third extra space.