Journals people actually keep: what do they look like?

[Shadow Trader]

Ask ten traders about their journals and expect ten different answers. The ones that survive tend to look surprisingly unglamorous.

One trader uses a plain spreadsheet with eight columns and a color code. Another uses a note app with a template that takes ninety seconds. A third records short voice memos after each session and transcribes a weekly summary. A fourth takes a single screenshot per day and writes one sentence under it.

What they share: low friction, consistency, and a weekly habit of actually reading it.

Elaborate journals tend to die because the effort grows faster than the payoff. The simplest system that captures the key numbers and one line of reflection will outlast the fanciest dashboard.

A useful question when designing one: "What decision will this field help make?" If no decision comes to mind, the field goes.

One neat trick is a "journal in two layers". Layer one is automatic: the platform export, imported into a sheet, with formulas doing the maths. Layer two is a short manual note, written only when something stood out. Automation handles the volume, human attention handles the exceptions.

What does the current journal format look like, and what made it stick?