Always count your change - it pays dividends
How well do most of us know ourselves? Probably not very well. We do not usually observe ourselves in a very structured way.
Increasingly people are keeping diaries of things they do, or don't do, in an effort to better understand their behaviour and perhaps change it.
Some people monitor moods and often gain some insight into what causes them to feel the way they do. One thing I do know about myself is that my exercise routine needs change.