To me, apart from the various points people have made about using warnings and strictures, structured code, using subroutines and so forth, the most important rule is:
Use meaningful names!
This applies to variables, subroutines, loops, filehandles, everything.
Always take a little extra time, 10 seconds or so, to name your variables well.
Good names can often make comments redundant and unnecessary.
I hope I never ever have to maintain a program again that's full of variables named @tmp, $i, $n, $ldr, %hash or subroutines named process or run and all the other meaningless crap people foist off as names.
helgi DOT briem AT decode DOT is
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