Pat comments on Collating widely available time/money trades - Less Wrong

17 Post author: RyanCarey 19 November 2012 10:57PM

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Comment author: Pat 09 January 2013 04:04:56AM 0 points [-]

You could install a bidet on your toilet. Disclosure: I've never used a bidet.

Cost

  • Bidet: $750
  • Installation: $250 (a guess)

Total: $1,000

Time savings (assuming 1.5 bowel movements/day)

  • Hand washing: 60s per day (40s/BM)
  • Read a book or use your phone instead of wiping: 45s/day (30s/BM)
  • Reduced need to clean backside when showering: 10s/day

Total: 6 hours/year (PV ~ 37 hours, assuming a 10% discount rate and a bidet lifetime of 10 years)

Cost per hour: $27

Comment author: gwern 09 January 2013 04:40:47AM 0 points [-]

It really takes you half a minute per bathroom visit to wipe your bottom, and saves you any time in the shower?

(It occurs to me that questioning your time estimates as high sends bad signals about my personal characteristics...)