Is there an alternative to using the $self->param() function of CGI::Application to access an application-wide data structure, while still staying true to the CGI::Application paradigm?

In my homebrewn script before C::A, I used a global %hash. Back then I could access my %hash in print contexts or similar like this
print "this funky var: $hash->{funky}";
Doing the same with the param() function does not work, as it is a subroutine reference and not a var:
print "this funky var: $self->param('funky')";
Also declaring values with param is sometimes tedious:
$self->param('key') = \%valuehash
(which gives an lvalue error...)

As I think, there are two ways of solving this:
1. declaring my %hash as our at the start of MyApp.pm -or-
2. pulling the $self->param() values into scope at the entry of each runmode subroutine

sub somerunmode {
 my $value1 = $self->param('key1');
 my $value2 = $self->param('key2');
 ...
}
[download]

Both ways seem to be a deroute from the CGI::Application approach. Some feedback on best practice here is very welcome! (Would loosening my use strict; pragma make life easier?)

BTW: sorry for this being not-exactly-perl-related..

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