Usually when I find myself in the company of trained science people I feel like a spaniel at a cocktail party. The in-house field scientist, though, recited the three defining qualities of a proof that fit neatly with my ground-level experience of design. Look for a solution that is sufficient, parsimonious, and elegant.
Those qualities exactly describe favorite domestic discoveries that have allowed me to manage life support without feeling like Thoreau's householder pushing her barn ahead of her on her road through life. -30-More after the jump.