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The Small Hours
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Practical articles for the decisions behind the numbers. Start with a worked example, then use the related tools to explore your own inputs.

Showing 37–48 of 51 articles

Marketing · 5 min read

How to Validate and Split an XML Sitemap: Limits and Examples

Check XML syntax, URLs and dates, understand sitemap count and byte limits, then download complete sitemap parts and an index.

Read the article ↗Business · 5 min read

Landed cost per unit and return allowance: a pricing workflow

Allocate shipment costs to individual products, compare future return costs, and carry consistent cost assumptions into contribution and break-even planning.

Read the article ↗Utilities · 3 min read

Cups to Grams, Serving Scaling and Cake-Pan Conversions

Use named ingredient equivalents and pan geometry without scaling baking time mechanically.

Read the article ↗Marketing · 5 min read

Hreflang Return Links Audit: Self References, CSV Examples and Checks

Generate a complete alternate-language cluster, identify missing supplied return links and verify that your deployed pages match the intended mappings.

Read the article ↗Business · 5 min read

Multi-product break-even analysis: weighted contribution and sales mix

Calculate a break-even sales mix, distinguish unit shares from revenue shares, and test how a lower-margin product changes the required volume.

Read the article ↗Utilities · 3 min read

Days Between Dates and Date Offsets: Inclusive vs Elapsed

Count calendar days and add signed offsets without confusing month lengths or working-day rules.

Read the article ↗Business · 5 min read

Break-even ROAS vs MER: formulas, costs and a worked example

Distinguish campaign ROAS from business-wide marketing efficiency, calculate a cost-based advertising ceiling, and avoid treating either ratio as profit.

Read the article ↗Utilities · 4 min read

Fix CSV Files Opening in One Column: Delimiters and Quotes

Check separators, quoting and data types before repairing an export or importing it into a spreadsheet.

Read the article ↗Business · 5 min read

Cash runway and hiring impact: calculate burn and compare scenarios

Build a cash-based runway baseline, add salary and one-time hiring costs at the correct time, and distinguish a constant-burn estimate from a dated cash forecast.

Read the article ↗Utilities · 4 min read

Unit Conversion: US vs Imperial, Bytes vs Bits and Rounding

Avoid feet-and-inches, gallon, byte and fuel-economy mistakes by naming the quantity and convention first.

Read the article ↗Business · 5 min read

CAC payback vs customer lifetime value: formulas and churn example

Compare constant-margin CAC payback with a finite lifetime-value model, see how churn changes recovery, and keep acquisition-cost definitions consistent.

Read the article ↗Utilities · 5 min read

Convert nested JSON to CSV without losing identifiers or arrays

Choose a row definition, understand nested columns and array cells, then reconcile the export before importing it into a spreadsheet.

Read the article ↗

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