Breadcrumbs Without a Plugin

function the_breadcrumb() {
    global $post;
    echo '<ul id="breadcrumbs">';
    if (!is_front_page()) {    
          if (!is_home()) {
        echo '<li><a href="';
        echo get_option('home');
        echo '">';
        echo 'Home';
               echo '</a></li><li class="separator"> / </li>';
               if (is_category() || is_single()) {
                    echo '<li>';
                    the_category(' </li><li class="separator"> / </li><li> ');
                    if (is_single()) {
                         echo '</li><li class="separator"> / </li><li>';
                         the_title();
                         echo '</li>';
                    }
               } elseif (is_page()) {
                    if($post->post_parent){
                         $anc = get_post_ancestors( $post->ID );
                         $anc=array_reverse ( $anc );
                         $title = get_the_title();
                         $output='';
                         foreach ( $anc as $ancestor ) {
                              $output .= '<li><a href="'.get_permalink($ancestor).'" title="'.get_the_title($ancestor).'">'.get_the_title($ancestor).'</a></li> <li class="separator">/</li>';
                         }
                         echo $output;
                         echo '<li title="'.$title.'"> '.$title.'</li>';
                    } else {
                         echo '<li> '.get_the_title().'</li>';
                    }
               }
          }
    }
    elseif (is_tag()) {single_tag_title();}
    elseif (is_day()) {echo"<li>Archive for "; the_time('F jS, Y'); echo'</li>';}
    elseif (is_month()) {echo"<li>Archive for "; the_time('F, Y'); echo'</li>';}
    elseif (is_year()) {echo"<li>Archive for "; the_time('Y'); echo'</li>';}
    elseif (is_author()) {echo"<li>Author Archive"; echo'</li>';}
    elseif (isset($_GET['paged']) && !empty($_GET['paged'])) {echo "<li>Blog Archives"; echo'</li>';}
    elseif (is_search()) {echo"<li>Search Results"; echo'</li>';}
    echo '</ul>';
}