The "PPPPPPP" or "7 Ps" stands for Proper Planning and Preparation Prevents Piss Poor Performance. It's an old adage from the British Army... and there are several variations used... but the advice is the same: Plan and Prepare. One of my first "real" jobs was working in Yosemite National Park. I worked for the concessionaire in the park in their Employee Training department. Every once in a while, I'd be called to the Executive offices to fill in for a secretary who was out ill or on vacation. It was there that I learned one of my most valuable, organizational tips. The secretary to the President of the company taught me to look at the tasks of a project, evaluate what could be done ahead of time, and to complete those tasks first. She was always one step ahead of everyone else in the office. She was so good at the planning and preparation that she didn't get lost when the inevitable, unforeseen circumstance popped up, or unexpected, last-minute change occurred. She was always ready.
This life skill is a technique habit that can be easily learned. And once you prefect it, you'll implement it in all aspects of your life. Start small... Like setting out your clothes or packing your lunch the night before. Or make sure you're car is full of gas and that you have all of the supplies you'll need.
Trust me, you'll be glad you prepared when it comes time for the performance.