If I'm in the kitchen I'm actively cooking or using the sink and pacing around, so the motion sensor keeps the lights on. After 1 minute of no motion, they turn off. Important to set timers though as the lights are no longer a reminder if something is in the oven or on the stovetop.
For the bathroom, I have a sensor placed precisely to view both inside and out of the shower with the curtain closed. This means the lights won't turn off while someone is in the shower unless they stand really still for 2 minutes. If someone wants to take a bath and won't move much, I can override the sensor to a longer shutoff time.
At 6:30pm I have a light that turns on to simulate that we're home. Looking to move this to a "sunset minus 30 minutes" model soon so it appears more organic.
At 2am, all of the lights turn off in case we forgot, or as a friendly reminder to go to bed. It hasn't worked today. :)