Hold Everything
Full disclosure: I suck at holds. I can find the fix and figure out the recommended entry method without too much trouble. And I usually turn the correct direction upon crossing the holding fix. Usually. After that, things start to become loosely held, and it might take me a couple of laps to nail the wind correction angles. Throw in a descent while in the hold and my cockpit gets busy. I guess thats why the FAA a few years ago added holding patterns to the maneuvers required to accomplish an instrument proficiency check. Its all my fault.