You should also familiarize yourself with CGI::Carp (great for run time errors). I'm quite fond of keeping my own log, something resembling

BEGIN {
    use CGI::Carp qw( fatalsToBrowser );
    CGI::Carp::carpout(\*LOGGY)
        if open(LOGGY, '>>'.__FILE__.'.err.log');
}
[download]

MJD says you can't just make shit up and expect the computer to know what you mean, retardo! ** The Third rule of perl club is a statement of fact: pod is sexy.

That's the best advice I've received (and will take) in a long time! I wish I knew that along time ago! Recently, my web host's server didn't return a fatal error in the error log, but I assumed that was just a web host thing. When others programmers couldn't find this one (and I know they tried), I figured there was no error that would stop execution.