use strict;
#following three are for debugging--turn off for production.
#(first two can clog up the web log; last isn't of as much consequence
+ if left uncommented)
#use warnings;
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Usually, if you're going to use "strict" and "warnings" then you'd put them right at the top of the file so that that they cover as much of your code as possible.

And if you're commenting out 'use warnings' because it "can clog up the web log", then I'd be concerned that there are still some potential problems in your code. It should be possible to get code to run constantly without filling your web log with warnings. You should run with 'use warnings' turned on and track down and fix all of the warnings that you get.