The presentation of any idea so that it is completely and unmistakably clear.
Current weakness. The last few personal animations I have done I have realized that I am really suffering here. My ideas are fine (probably) but they aren't coming across clearly to the viewer. If the viewer misses it, there's no point for any of the rest of it.
JHD's 100 frame challenges are the perfect solution. Fixed frame limit so I have to learn how to prioritize ideas instead of just stretching things out to make it all fit, and to make them achievable as exercises.
Here's the list of topics that've rolled through on his blog. Going to try and do 1 a week for a while. (but I'm on vacation next week, without a computer, so remind me the week after.)
mental break down
(and some other exercises that would fit within 100 frames)
Juice box enter scene, react to something, and exit scene
Thought process while getting up from a chair
Character interact with an object
Have Character "fix" something
Gear change: 2 different thoughts with a good transition moment (this LightSwitch moment is the key point to this excercise)