When setting up a Node Reference field (to take one example), the admin can select the maximum number of nodes which may be referenced using that field. The current settings for the maximum are 'Unlimited' and 1 to 10. I would like to suggest adding the numbers 20 to 100 by 10s as this would be a very useful enhancement. There are cases where 10 nodes are not enough but I do not want to set it to 'unlimited'. Having the extra numbers gives more control and better flexibility.
The attached screen grab shows the drop-down list before and after, and the attached patch makes the following one-line change to $form['field']['multiple'] in content.admin.inc
'#options' => array(1 => t('Unlimited'), 0 => 1) + drupal_map_assoc(range(2, 10)),
'#options' => array(1 => t('Unlimited'), 0 => 1) + drupal_map_assoc(range(2, 10)) + drupal_map_assoc(range(20, 100, 10)),