The big job for this week-end, stop our oven trays and wok sliding around every time we want to extract one of them.  The solution – two strips of wood nailed to the cupboard floor.  Perfect – got rid of the clanging and realised we had more useable room.  All oven tray cupboards should have a grooved floor.  I just know this is the one big problem the world has been waiting to solve :-)