I disagree. Brushing your teeth in the shower is a life hack if you do it while you are waiting for your conditioner to soak in... one more necessity done and at least two minutes of saved time per day. That's a life hack.

@Kafirah Yech!
What do you rinse your mouth out with?

@Kafirah You got the idea! On the same token of saving time in the bath, I was working long hours. I'd fill my tub half way the night before. Then fill it up with warm water in the morn. While it was filling, I'd sap fry something for breakfast. Get the coffee going. Get clothes ready the night before. You would be surprised how much time this will save. If you are running late, take the food with you. Get to work early, and eat it in the break room until you clock in. Better to be early than late.

@Paul4747 The water from the tap, otherwise known as the shower...

@TheGreatShadow I've always lined up stuff the night before - I'm not a morning person. lol

Also bringing your own coffee from home - cost saver.

@Kafirah Warm water? Again, yech....

It's worth 2 minutes a day to brush my teeth my way.

Anyway, my main objection is to the terminology. Call it "time saving". "Life hack" is not a thing that exists. That makes life sound like a computer program. Life is more complex than a computer program.

@Paul4747 Unless it isn't...

[en.wikipedia.org]

Great! This is mostly for people that are on a budget, or someone that just wants to save money!