Category
Everyday
Most decisions are not dramatic. They are repeated journeys, heating settings, meals and replacements. Everyday experiments compare two plausible routines using costs and times you enter, then show the estimated difference — not a verdict about the best life.
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What if I walked instead of drove?
Compare walking a repeated local journey with driving it, using your distance, weekly rhythm and a simplified cost per kilometre.
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10 interactive experiments.
What if I walked instead of drove?
Compare walking a repeated local journey with driving it, using your distance, weekly rhythm and a simplified cost per kilometre.
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What if I stopped using my car?
Add up fuel, insurance, parking, maintenance and extras for a year, then see what remains if you still own the car.
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What if I worked four days a week?
A calendar comparison of two working patterns after holiday weeks — not a claim about pay, rights or productivity.
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What if I worked from home one more day?
Compare the estimated commuting time and day-cost of adding between one and four home-working days each week.
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What if I reduced my home heating?
Apply a reduction you choose to a monthly heating cost and a heating season you choose. Not a universal saving.
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Petrol vs electric running cost
Compare petrol and electricity running costs from mileage, mpg, miles per kWh and unit prices. Purchase stays off unless you add it.
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What if I cooked at home more?
Compare takeaway and home-cooked meal prices for the number of weekly swaps you choose, then let the gap run for years.
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Train vs driving
Put a driving cost per mile next to a train ticket and two journey times. Compare the estimated difference, not a best mode.
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What if I replaced an old appliance?
Compare kilowatt-hours, a unit rate and a purchase price over a number of years. Every figure is an estimate.
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What if I bought less and reused more?
A replacement-cycle calculator: item cost, how often you buy now, how often you would buy if you reused more, and years.
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