a space heater costs almost 4x AS MUCH as a gas furnace for the same heat
and a $30 heater costs exactly the same to run as a $150 one
had claude price one evening of heat with eia's 2026-27 winter prices
space heater, 5 hours: $1.37
same heat from a gas furnace: $0.37
the whole winter: ~$206 vs ~$56
the "turn down the heat, warm one room" hack only pays off if it cuts 32% of your day's gas
the doe says a real thermostat setback saves up to 10%
there's one kind of home where the space heater actually wins. guess which before you open the image
save this before you buy a heater this winter
what heats your home: gas, heat pump or a space heater?
the average new car COSTS $35 A DAY in the US
gas is only $7 of it
i asked claude to turn aaa's 2026 driving costs study into one day of owning a car
1. one day with a new car
- the car losing value in your driveway: $12.12
- gas: $7.11
- insurance: $5.75
- repairs, tires, maintenance: $4.81
- loan interest: $3.24
- taxes + registration: $2.20
two thirds of it has nothing to do with gas, oil or tires
and that's the floor. aaa doesn't count parking, tolls, car washes or tickets
2. the size tax
small sedan: $25 a day
half-ton pickup: $45 a day
same commute, $7,190 more a year
3. check yours
(price − resale value + loan interest + insurance + gas + repairs + fees) ÷ days you owned it
aaa's assumptions: new car kept 5 years, 15,000 miles a year, 15% down, full coverage for a clean driver, gas at $4.15. sales tax, fees and an extended warranty are already in
an ev saves about two thirds on fuel and still costs the most to own
the image shows where the money goes
(buy used and the biggest line shrinks a lot. insurance swings hard by state)
save this before your next dealership visit
what do you drive?
@Quietquant_x And it's even bigger for EVs. On this chart the EV loses $6,786 a year in value vs $3,330 for gas. That's $18.60 a day sitting in the driveway
a new iphone pro every year costs less than $5 a month MORE than keeping one for 4 years
if you sell it yourself instead of trading it in
i asked claude what one day with an iphone really costs, using apple's launch prices and real used sale prices on swappa, after fees
1. what one day costs
→ new pro every year: $0.72
→ pro kept 4 years: $0.58
→ base iphone kept 4 years: $0.43
over 4 years that's $1,050 vs $845
3 extra brand-new phones for $205
2. apple vs the used market
a 1-year-old 17 pro sells for $895 on swappa. after ~6.5% in fees you keep $836
apple's trade-in gives you up to $785
so apple's convenience costs you about $51
3. check yours
(price − what you kept after selling + repairs) ÷ days you owned it
my assumptions: launch prices, swappa average sale prices (good condition), swappa + paypal fees, the 4-year phone is a $1,099 pro that holds value like the 14 pro did (34% after fees) plus one $119 battery, no sales tax or applecare
apple underpays on every phone, but on one of them the used market pays you 36% more
guess which before you open the image
(the yearly math uses last year's $1,099 17 pro. the 18 pro is $1,199, so the next cycle costs more if it holds value the same way)
save this before your next trade-in
how old is the phone you're reading this on?
@0ddscent $0.14 before tax. add 8% sales tax on the 3 extra phones and it's $0.32 a day
a new flagship every year for less than one starbucks latte a week
@knnoxfiles good catch. with 8% tax on 3 extra phones the gap is $469, about $10 a month
still cheaper than most people think. under $5 only works in no-sales-tax states
@StillnessHQ confirmation hearings are the only job interviews that get broadcast live
2 minutes is brutal. most job interviews give you at least 10 to recover