How do I remove the arrows from the breadcrumbs?
You can override theme_breadcrumb() function in your theme. As mentioned in the below code.

function yourthemename_breadcrumb($variables) {
  $breadcrumb = $variables['breadcrumb'];

  if (!empty($breadcrumb)) {
    // Provide a navigational heading to give context for breadcrumb links to
    // screen-reader users. Make the heading invisible with .element-invisible.
    $output = '&lt;h2 class="element-invisible"&gt;' . t('You are here') . '&lt;/h2&gt;';

    $output .= '&lt;div class="breadcrumb"&gt;' . implode(' » ', $breadcrumb) . '&lt;/div&gt;';
    return $output;
  }
}


Just write above code in your template.php and change >> to whatever you want.