For me, I've not employed an assistant or had to work with one before. I am the assistant. I enjoyed this class and three things stood out for me:

1. 

   Be tech savvy. Find out who sorts out tech related issues and learn from the person. Your company does not expect you to know how to use all tools, but having knowledge of the most common ones used in the company will come in handy
2. In scheduling of executive's time, the sim is to reduce thinking and decision making for him/her
3. Organization is meant to be more effective than being aesthetic. Aesthetics is a plus.
4. Save documents in an iCloud system or server where you or your executive can quickly get it when needed.