Is this bad practice? Will it hurt anything? (I assume "no" to both questions, but I could be wrong.)
I don't think so, unless these modules do something really strange. In which case you would probably already know from their documentation. See e.g.: 
#! /usr/bin/perl -l

use strict;
use warnings;
use lib sub { print pop; undef };

use File::Find;
use File::Basename;
use File::Find;

__END__

[download]
which gives me 
File/Find.pm
warnings/register.pm
Cwd.pm
vars.pm
XSLoader.pm
File/Basename.pm
re.pm
File/Spec.pm
File/Spec/Unix.pm
Scalar/Util.pm
List/Util.pm
DynaLoader.pm
AutoLoader.pm

[download]

In reply to Re: Using a module more than once by blazar
in thread Using a module more than once by kwaping

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