Still at a fairly early stage of development, but check out my module Syntax::Collector. The idea is that you create a module like this:

package MASCIP::Stuff::A;
our $VERSION = 1;
use Syntax::Collector -collect => q{
use common::sense 3.0 ;
use Data::Dumper 0 qw/Dumper/;
use IO::All 0 qw/io/;
};
1;
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And then when you are writing code, just do:

... and Syntax::Collector will magically enable everything for you.

The advantage of Syntax::Collector over other modules that do the same thing is this. Grepping through your source code for lines that match /^use/ will reveal the pre-requisites. Most other module bundling techniques tend to obscure which actual modules are being used, which can make automatically determining pre-requisites difficult.