Last week I showed someone the env perl trick.
As the shebang line. This uses whatever Perl is first in your path. Today they showed me back in return the handy "recursive_test_files" option to Module::Build that lets you put subdirectories of tests in "t/". Sweet.
The best tip I've learnt and passed on (which I'm sure everyone else knows about by now) is using \G in the mysql shell. This prints out results with a line per column rather than trying to render some kind of table, meaning that things take way more space to print out but don't fall over horribly when the output is wider than the screen and wrapping occurs.
Hmm. I should apt-get install ispell on this box. Oh well, you'll have to put up with my speeling mistkes for a while.