diff --git a/select_or_other.api.php b/select_or_other.api.php
index 83681c6..825a83d 100644
--- a/select_or_other.api.php
+++ b/select_or_other.api.php
@@ -5,8 +5,9 @@
  * API documentation for Select or other.
  */
 
-
 /**
+ * Implements hook_select_or_other_available_options().
+ *
  * Provide a list of options for a select or other field. Options can be keyed,
  * unkeyed or a combination of both. Keyed values should be entered in a
  * key|value fashion. Unkeyed options will automatically be keyed with a key
@@ -15,7 +16,7 @@
  * Options provided using this hook can be overwritten by options provided in
  * the 'Available options' field on the instance settings form.
  */
-function hook_select_or_other_available_options($entity_type, $bundle, $field_name){
+function hook_select_or_other_available_options($entity_type, $bundle, $field_name) {
   if ($entity_type === 'node' && $bundle === 'page' && $field_name === 'field_some_field') {
     return array(
       'keyed|A keyed value',
@@ -23,3 +24,17 @@ function hook_select_or_other_available_options($entity_type, $bundle, $field_na
     );
   }
 }
+
+/**
+ * Implements hook_select_or_other_process_alter().
+ *
+ * Provide a hook to alter the widget depending on the context and form_state.
+ * In this example we remove the attached files and remove the 'other' textfield
+ * depending on the state of the form submitted.
+ */
+function hook_select_or_other_process_alter(&$element, &$form_state, $context) {
+  unset($element['#attached']);
+  if ($form_state['submitted']) {
+    $element['other']['#access'] = FALSE;
+  }
+}
diff --git a/select_or_other.field_widget.inc b/select_or_other.field_widget.inc
index 348bc17..ea65e46 100644
--- a/select_or_other.field_widget.inc
+++ b/select_or_other.field_widget.inc
@@ -370,7 +370,8 @@ function select_or_other_field_widget_settings_form($field, $instance) {
 function select_or_other_field_create_instance($instance) {
   if (
     empty($instance['widget']['settings']['available_options']) &&
-    empty($instance['widget']['settings']['available_options_php'])
+    empty($instance['widget']['settings']['available_options_php']) &&
+    empty($instance['widget']['settings']['other'])
   ) {
     return;
   }
diff --git a/select_or_other.module b/select_or_other.module
index d439318..0babdc1 100644
--- a/select_or_other.module
+++ b/select_or_other.module
@@ -273,6 +273,8 @@ function select_or_other_element_process($element, &$form_state) {
     $element['other']['#size'] = $element['#other_size'];
   }
 
+  drupal_alter('select_or_other_process', $element, $form_state, $context);
+
   return $element;
 }