Tell Us: What's Your Biggest Kitchen Design Mistake?

Arrrrrrggh. My neighbor redid her kitchen last year and is now annoyed that the cupboards in her island are on the side furthest from the oven. Whoever designed my kitchen crammed a big fridge into a too-small space. We had to buy a new fridge last year so that the door would open without banging the counters. Lately, I've learned kitchen mistakes are more pervasive than I thought they were.