Handy XP / Knowing What You Are Looking At

A Written Record Is The Cheapest Thing You Own

Memory is a poor instrument for measuring slow change.

Human memory is spectacularly bad at slow change, which is precisely the kind of change a building produces. Ask yourself whether a mark is bigger than it was last winter and you will not know, because your brain has been quietly updating its picture of normal every single day. The only reliable defence is a record made at the time, in words and dates, and preferably with a photograph taken from the same position so that comparison is honest rather than impressionistic.

The record does not need to be elaborate. A dated line of plain description is enough: what you saw, where, and what the weather or the season was doing. The discipline is in the dating and the repetition, not in the format. A notebook works. A single running document works. What matters is that it is one place, that it survives, and that the next entry can be compared with the last without a feat of recollection.

The payoff arrives twice. First, in your own decision making, because a record turns a vague unease into an observable trend and a trend is what justifies acting now rather than later. Second, when you speak to a tradesperson, because dates and progression let them price a job properly instead of guessing. A person who can say when something started, how it has moved, and under what conditions it worsens is a client who gets better work and fewer surprises. That is a real advantage, and it costs nothing but a pen.