I spent years as a QS being drilled on contemporaneous records. Early warning notices, site diaries, the correspondence trail that proves who knew what and when. The whole discipline exists because memory is unreliable and disputes get settled by paper, not by who argues loudest six months later.

Almost nobody applies that same discipline to their own career.

The pattern I see most often, sitting across from candidates who have just been passed over: they know exactly what they did that year. They can talk you through the moment they held a programme together, the call they made that saved a contractor from a bad variation, the meeting where they were the only person in the room who caught the problem. What they usually can't do is produce any of it. No note, no email, no dated record. Just a strong memory that nobody else shares.

Meanwhile the person who got the promotion is not always more capable. They are often just better documented. Not because they're self-promoting, but because their name is on the minutes, the decision is in an email thread, the trail exists for someone else to find without having to ask them.

Here's why this matters more than it should. A promotion panel was not in the room when you made your best calls. They reconstruct your year from whatever evidence surfaces, and evidence is patchy by nature. When nobody has a record, the story fills in with whoever is loudest, most senior, or simply easiest to remember in the moment. That is rarely the person who actually made the call.

This isn't an argument for self-promotion or manufacturing a paper trail to look good. It's a much smaller, duller habit than that. At the end of each week, write three lines: what decision did I make that wasn't handed to me, what would have gone differently if I hadn't made it, who else was there. Keep it somewhere private. It's not for LinkedIn and it's not for the project file. It's for you, for the appraisal conversation, and for the moment six months from now when someone asks what you actually did and your answer needs to be more than "I was there."

The QSs who move fastest through the Commercial Pathway aren't always the sharpest technically. They're the ones who can produce, on request, a clear account of the judgement calls that were theirs. Everyone else is relying on memory, and memory loses to a written record every time.

Start the log this week. Three lines, dated, kept somewhere you'll actually find again. It costs you five minutes on a Friday, and it's the only evidence you'll have when someone finally asks what you brought to the year.