When other people are concerned (meeting, date, party, etc.), I always try to do my best to be on time or early. However, if it's just me involved, I'm usually incredibly disorganized and late.
I think it has something to do with wanting to make life easier for others and present a good image - while I already know that I'm a lazy SOB
For example, my desk at work is a volcanic eruption of papers, boxes, sticky notes, and various other items that I may or may not have a use for. I'm the only one that uses it. However, my files (which many people in the office may need), are meticulously kept up and in order.
Maybe I just care too much about how others think of me...?