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Shampoo Bottle Protocol

Last updated on May 15, 2021 by Sal Ferrarello

One day I realized that the last 10% of the shampoo bottle lasted at least as long as the first 90%. I suspected this was because most of the time I was using too much shampoo but as I neared the end of the bottle I used a more appropriate amount.

How could I trick my brain to always use the appropriate amount?

Thus was born the “shampoo bottle protocol”. I now have a second shampoo bottle that I use to refill my primary shampoo bottle. When refilling the bottle I never fill it more than 10%, therefore I’m always using shampoo at the slower burn rate.

Benefits

I like to joke that, “I have saved literally tens of dollars over the years thanks to this technique.”

In addition to the financial savings, I appreciate that I’m generating less waste. On top of all this, I just enjoy the fact I’m tricking my brain.

Sal Ferrarello
Sal Ferrarello (@salcode)
Sal is a PHP developer with a focus on the WordPress platform. He is a conference speaker with a background including Piano Player, Radio DJ, Magician/Juggler, Beach Photographer, and High School Math Teacher. Sal can be found professionally at WebDevStudios, where he works as a senior backend engineer.

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Filed Under: Draft, Happy, Solution Tagged With: lifehack

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Comments

  1. Kerch says

    May 17, 2021 at 7:16 pm

    I’ve been cutting dish soap down to about 40% for years!

    Reply

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