My self-derived axiom is to multiply by 6, the estimate of effort it takes to accomplish any task in life. Of course there would be an applicable sliding scale which would vary the multiplier progressively in an inverse fashion by age increments from childhood leading into adulthood. At my age, I'm still somewhere around 5.6. This quantification is beginning to sound like a scientological derivation. Just six is okay.
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In spite of all the numerical jibber-jabber above, what I have found is that if you start to expend a greater effort on taking care of and keeping up with everyday things like housework, yardwork, laundry, etc, it ends up being less total effort than if you are forever slogging around in a mess. It also makes it way easier to multitask. Makes little sense, but it sort of does.