what should be done:
calf should be well broke
make sure all registration is done. if its not too late
what needs to get done in the next month:
get your showbox ready...all your brushes, adhesives if allowed, shampoos, etc
get feet trimmed if needed
get the calf clipped
know what your goin to wear. i know that might sound dumb but i think its good to know what you need or have to wear
it feels like im missing a million obvious things but someone will post more.
The following link is a good primer for anyone in their fisrt year of showing. It's 11 pages and pretty informative. Best of luck http://www.angus.org/pubs/Showing.pdf