I've done a lot of Perl stuff. See my module list on CPAN for details.
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Hope and Pray
Hash & Salt using Acme::XKCD::DebianRandom
Hash & Salt using other rng algorithms
Printouts secured with physical locks
One of a million Post-Its sticking on the monitor
A piece of paper taped to the backside of the keyboard
Results (52 votes). Check out past polls.