I put both strict & warnings pragmas listed first on a single line. Rest are alphabetically sorted.

That will be followed by other pragmas in a group, which will be followed by group of modules. If the list is "large enough" and/or list has highly unrelated modules, modules will be divided into subgroups by function.

Above could be then ...

use strict; use warnings;

use utf8;
use namespace::autoclean;

use AnyEvent;
use AnyEvent::Twitter::Stream;
use Coro;
use LWP::Protocol::AnyEvent::http;
use Net::Twitter;

use Data::Visitor::Callback;
use DateTime::Format::Strptime;
use YAML::Any;

use Log::Log4perl qw(:easy);
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