I've stripped my kitchen down to bare walls, and I'm about to start preparation prior to fitting an IKEA flat-pack kitchen. Basically, I'm a competent DIYer, and I'm happy to do wiring, simple plumbing etc. My question is; are there any top tips or major mistakes I should know about? Anyone else fitted a kitchen for the first time and had any painful or expensive lessons they want to pass on? I'm planning to get the worktop supplier (Wey Plastics in Wandsworth) to cut the one post-formed joint, to avoid problems in that area.