G'day smaines,

Welcome to the Monastery.

Firstly, you have some redundant lines which wouldn't need to go into MyCommonUses.pm. The line:

use v5.18;
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automatically gives you these:

use strict;
use feature qw(state say);
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Although, consider writing it like this (see use for an explanation):

use 5.018;
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In terms of your main question, there's something very similar to that on CPAN: Modern::Perl. The source code for that module may provide pointers for creating your MyCommonUses.pm.