package MyApp;
use base 'CGI::Application';
use CGI::Application::Plugin::Session;
use CGI::Application::Plugin::AutoRunmode;

sub setup {
   my $self = shift;
   $self->start_mode('home');

}

# this method is a "runmode" a "screen view" if you will
sub home : Runmode {
   my $self = shift;
   $self->have_basic_info or return $self->forward('basic_info');
   
   ...

}

sub basic_info : Runmode {
   my $self = shift;
   
   return q{<form>
   name: <input name="name" value="">
   <input type="hidden" name="rm" value="_basic_info_save">
   ... };
}


sub _basic_info_save : Runmode {
   my $self = shift;
   $self->query->param('name') or die('missing name');
   $self->session->param('name' => $self->query->param('name') ); ...
}


# this method is not a runmode :
sub have_basic_info {
   my $self = shift;
   
   # LOOK: you don't worry about instancing the session object, about making
   # sure who it's for, etc etc-- you just freaking call self->session() 
   # and your object is there- cookies set.. the works- all for you!

   $self->session->param('name') ? 1 : 0;
}