I prefer a military-grade, 8192-bit, CCA-2 secure Post-It note. They are available in packs of 100 in a variety of unhackable pastel colors. On Sun, Mar 2, 2014 at 11:39 AM, Tony Arcieri <bascule at gmail.com> wrote: > > And the same thing could more or less be accomplished with less than $0.10 worth of black tape? >