Always using the same ARRAY on different querys

I don’t like using categories for this, as they are supposed to be semantic terms. I do, however, like the idea of the global array. Instead of creating a new query directly, I will filter it through a function that will add the results to a global array and return the results:

I add this to functions.php:

function nt_globals($args){
    global $used;

    $defaults = array(
        'post__not_in' => $used,
        );
    $query = wp_parse_args( $args, $defaults );

    $queryObject = new WP_Query($query);

    foreach ($queryObject->posts as $item):
        $used[] = $item->ID;
    endforeach;

    return $queryObject;
}

Then I call the function whenever I want a query:

$queryObject = nt_globals('posts_per_page=1');

while ($queryObject->have_posts()):
    $queryObject->the_post();
    the_title();
endwhile;