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Home, Pets & Family

Running a household: animals, gardens, maintenance, chores, school and the admin of moving.

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Plan revision backwards from the deadline
2026-08-25 · 3 min read

The deadline is fixed and the hours are not negotiable either. Everything else is division — and the remainder is where plans usually break.

schoolplanningkids
A chore rota that is even, and how to check it
2026-08-25 · 3 min read

Fairness in a rota is not a feeling. It is a count, and you can prove it before anyone complains.

householdchoresplanning
One week of meals, one shopping list
2026-08-25 · 3 min read

Turning a meal plan into a shopping list is a merge. The interesting part is knowing which lines you are allowed to merge.

householdplanningfamily
The arithmetic in a homeschool transcript
2026-08-25 · 3 min read

A GPA is credit-weighted, and averaging the grade points instead gives a different number. Here is the sum, done twice, so you can see the gap.

schoolfamilyplanning
The handover sheet a pet sitter actually needs
2026-08-25 · 4 min read

Everything you know about your animals is in your head, and the person taking over knows none of it. What to write down — and the one thing a sheet like this should refuse to print.

petshomeplanning
Pet years: why the seven-to-one rule is wrong
2026-08-25 · 3 min read

The familiar multiplier spreads a lifetime evenly when almost none of it is even. Here is the three-part conversion most estimates actually use, worked through for a dog and a cat.

petshomeplanning
A planting calendar built from your own frost dates
2026-08-25 · 3 min read

Sowing guidance is written relative to frost, not as dates. Supply your own two frost dates and the whole calendar is arithmetic — in any climate and either hemisphere.

gardenseasonalplanning
A year of home maintenance on one page
2026-08-25 · 3 min read

Household jobs are not forgotten because they are hard — they are forgotten because nothing prompts them in the month they are cheap. Anchor each one to the weather that makes it matter.

home-maintenancehomeseasonalplanning
Service due: mileage or months, whichever comes first
2026-08-25 · 3 min read

A service schedule has two limits, and the one that governs depends on how much you drive. The four-line calculation, worked through twice with the same car and two different drivers.

vehicleshomeplanning
What actually changes when you scale a recipe
2026-08-26 · 4 min read

The ingredients are a straightforward multiplication. The tin and the depth are geometry, and time follows the depth rather than the quantity — which is why doubling is not simply doubling.

cookingmatheverydayhome
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