Never let 'em see you sweat. Guests feel guilty if they think you've worked too hard to make dinner for them - which of course you have!
For the past 33 years, I have looked in the mirror every morning and asked myself: 'If today were the last day of my life, would I want to do what I am about to do today?' And whenever the answer has been 'No' for too many days in a row, I know I need to change something.