@snb

Agreed.
But coming from a background where I had to find somewhere to dump all my time (where non-chargeable time was strenuously "discouraged" by my bosses), I would still personally keep a tab on all hours. Allows calc of chargeable/non-chargeable ratio etc (unless @Aussiebear does not want to know how much of his time is non-chargeable.)
Old habits die hard, I guess!