Not keeping a schedule, i.e. ""I'm not keeping a schedule for 2007, so I can't commit to that, but give me a call on Tuesday at 2:45 and if I'm available, I'll meet with you."".

I don't know too many people who would be happy about being told you value their time so much. I keep a tight schedule and I plan around it instead. I also don't feel the need for an index card each night. I already have my lists of jobs that I need to get done and some of those jobs are due tomorrow.