Yeah, I've waited long enough to make a thread of this.
For now, all I have is this.
I don't know much about animating, but I like to think I'm getting better. It's less intimidating now when you don't over-think it too much. Just thumbnail it, do your keys, test it and fix any issues. Then do your breakdowns, then test it and fix any issues, then your inbetweens, then test it and fix any issues. Focus on the important stuff first, move onto details later.
On your first go get your shapes down, make sure it works, then focus on one detail at a time. Don't treat it any differently than drawing a single image: Putting in details before you know your most important masses are down is a recipe for disaster. Remember about secondary animation as well. Not every mass of the form is important enough to consider on the first go, but this depends on what you're trying to do.
Now don't ask me what's happening here. I just drew something and went with it. Maybe someone's pulling out a rug from under him or something, I don't know.
This is all on twos (sans the smear), because I'm lazy. Where are his ears? Again, lazy.
I'll have another one in a few weeks. I'm taking a character animation class taught by ex Disney animator John Webber, who started off as an inbetweener on Pocahantas, then moved up to lead animator for characters like Mushu and Lilo in their respective films. Cool guy.