Executive istants...HELP??!!?

Congrats on the new job!! I was a PA for a couple of years in between uni and it sounds like you're on the right track already. I dont know whether you have access to their phone message bank but I used to check my boss's pretty regularly as he was in meetings or out of the office a lot. Like you said, organisation is the key so make sure all schedules are updated and even circulated to other staff members so they are aware of your exec's schedules. Get to know their habits, from the littlest detail like where they go for lunch to who their major clients are and keep a contact list handy! Good luck!