I found this site a little while ago and have been keeping up with it for a few months now. There are some good scripts on here to help animators out and is also an animator that does lots of rigging. One that might help is: . This may come in handy while in blocking and going from one pose to the next since it is a technique of some to zero out all keys when moving onto the next pose (in blocking) to help keep your curves clean and it can help with things like gimbal. Lots of studios have this script built in to their software and I know it comes in handy.
So check in from time to time because he updates regularly. There are some scripts for animators to help and some more advanced for others that like scripting. So look around and enjoy.