Cost Per Use
“It's $180 — if I wear it weekly for two years, is that expensive?”
Four times the money and half the cost, because one pair lasts five times as long. Works out what each option really costs every time you use it — and the month the expensive one overtakes buying the cheap one again and again.
- Cost per use and cost per year, with running costs and resale counted in
- The break-even month, which is the number that actually decides it
- A chart where the cheap line steps up every time you replace it
- Says plainly when the expensive one never catches up
- And reminds you the whole thing rests on how often you'll really use it
- This one is finished and tested — not on the build list
- It will be $9, same as every other tool
- One email when it goes up, no list, no spam
Three steps, then you're done
The cheap one, the dear one, and keeping what you've got.
The number you'd bet money on, not the hopeful one.
And decide whether you'll keep it that long.
Questions
Do I need to install anything?
No. Each tool is a single file. Double-click it and it opens in Chrome, Edge, Safari or Firefox — whichever you already have. No account, no password, no software.
Does anything get uploaded?
No. Your numbers and files never leave your computer — the tools have no way to send them and no internet connection is needed to run them. You can switch your wi-fi off and they still work.
I'm not good with computers. Is this too hard?
The first thing every tool does is walk you through it in five short screens with pictures. Then there's a button that fills it with example numbers so you can watch it work before touching anything.
Will it work on my phone?
Yes. Email yourself the file and open the attachment, or drop the files in iCloud Drive, Dropbox or Google Drive and open them from there — then they're on every device you own.