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Cleaning before you analyze (Sheets edition)
A practical Sheets cleaning pass: trim, dates, splits, nulls, and deduping only after grain is clear. Keep raw copies; log your steps.
Strengths, limits, and personality without mythology
Understand the true capabilities and limitations of Grok. We break down the differences between Fun Mode and Regular Mode, explore how it ingests live X data, and map…
Desktop app: Chat, Work, and Codex in one place
Part 4 of Learn ChatGPT from scratch. How the desktop app puts Chat, Work, and Codex in one place, what Free still limits, and how to pick a…
Chats, Projects, files, and Research
Part 4 of Learn Claude from scratch. When bare chat is enough, when a Project earns its keep, how files and Research fit, and a starter Project kit…
Keys, IDs, and joining in plain English
Why customer_id beats matching on names. Primary keys, foreign keys, one-to-many joins, and sheet habits that keep IDs stable.
