Google Sheets or Excel gives you flexible modeling, quick charts, filters, and easy sharing. Start with a raw data tab, a metrics tab with formulas, and a dashboard tab with concise visuals. Name ranges clearly, timestamp entries, and document formulas inline, ensuring future you understands what happened, why it matters, and how to extend the setup without breaking fragile dependencies or losing historical context unexpectedly.
Airtable or Notion helps when you need relations, tags, or simple forms. Create a pipeline table, a transactions table, and a content table. Rollups and views provide quick summaries, while forms streamline capture directly from your phone. Keep fields minimal, version changes, and export periodically so you never feel trapped and can migrate easily if your process outgrows the original constraints gracefully and confidently.
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