recursively sort files by modification time

find . -printf '%T@ %p\n' | sort -n

Does PostureFit work? It doesn't seem to prevent me from slouching.

Removing the armrests on a Steelcase Leap

Yes you can remove the arms/armrests from a Steelcase Leap. Contact Steelcase and they will email you a pdf of instructions on how to do it. Doesn't look too hard.

Victoria BC chairs

Monk's downtown - neutral posture, aeron
Gabriel Ross - aeron, mirra, liberty, freedom, knoll life
GraphicOffice - steelcase
Heritage Office Furnishings - ?

CombinationGenerator.php

CombinationGenerator.php - PHP class for computing combinations.