data.day
Issue #01 — Initial Commit

Field notes on data architecture, privacy, and control.

We write the hard, practical parts of data work: architectures that survive reality and trade-offs behind privacy. No hype.

29 Oct 2026  · presentation-design Oliver Metric

The Myth That PowerPoint Is the Problem

PowerPoint isn't cursed; your habits are. Discover the basic reporting etiquette that will stop 'Death by PowerPoint' and win back your clients' trust.

27 Oct 2026  · chain-of-custody Hugo Ledger

The Rant: If It Is Not Logged, It Did Not Happen

Teams rely on memory until it conflicts with invoices. Discover why treating the ledger as the sole source of truth is your only defense against liability.

26 Oct 2026  · kpi-design Oliver Metric

One Number, Please. Not Twelve Columns.

Learn how to replace cluttered reporting tables with one decision-driving KPI, a clear comparison and supporting evidence clients can trust.

24 Oct 2026  · email-automation Marta Clarity

Stop Forwarding Work Into the Void

Forwarding emails is not a workflow. Learn how to automate routing, assign clear owners, and track every request without inbox chaos.

19 Oct 2026  · architecture Lars Parse

NULL Is Not a Value, It Is an Excuse

A blank database cell is a legal liability. We must abandon the NULL value and adopt explicit states to preserve our evidentiary chain.

17 Oct 2026  · productivity-myth Marta Clarity

Myth: Copy-Paste Is Faster Than Automation

Copy-paste feels fast because it avoids thinking, but it guarantees repeat work. See why replacing manual cleanup with automation is the only way to scale.

Don't trust the hype.
Trust the method.

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