[ARothfusz]

I don't understand how refilling for $0.86 per wash is better than the $0.67 per wash if you use their cartridges? Or how that becomes "75 times cheaper". https://github.com/dekuNukem/bob_cassette_rewinder#cost-show...

How does this math make any sense?

  With that, the total cost per wash is:
  
  0.62p + 0.018p = 0.638p, or 0.87 US cent!
  
  We know from earlier that Bob Cassettes costs 48p (67c) per wash.
  
  Therefore, refilling it yourself is more than 75 times cheaper, resulting in a massive 98.7% cost saving compared to buying new!

Huh?

[admax88q]

It's 67 cents vs 0.87 cents. Or $0.67 vs $0.0087

[rgovostes]

Back in 2006, Verizon was similarly confused over the meaning of ".002 cents per kilobyte." http://verizonmath.blogspot.com/2006/12/verizon-doesnt-know-...

[suifbwish]

I bought a detergentless ozone washer this last year. It works pretty well most of the time for general washing unless you have something really heavy on your clothes like oil

[4ad]

A cent is not a dollar.