diff --git a/modules/cart/commerce_cart.module b/modules/cart/commerce_cart.module
index 0f88763a..e1bb9e46 100644
--- a/modules/cart/commerce_cart.module
+++ b/modules/cart/commerce_cart.module
@@ -10,6 +10,7 @@
 
 // Define a constant for the default cart provider.
 define('COMMERCE_CART_DEFAULT_PROVIDER', 'session');
+
 // Define constants for the shopping cart refresh modes.
 define('COMMERCE_CART_REFRESH_ALWAYS', 'always');
 define('COMMERCE_CART_REFRESH_OWNER_ONLY', 'owner_only');
@@ -2833,7 +2834,7 @@ function commerce_cart_ctools_plugin_directory($module, $plugin) {
 }
 
 /**
- * Returns the instanciated cart provider.
+ * Returns the instantiated cart provider.
  */
 function commerce_cart_get_provider($provider = NULL) {
   ctools_include('plugins');
diff --git a/modules/cart/plugins/cart_provider/CommerceCartProviderSession.class.php b/modules/cart/plugins/cart_provider/CommerceCartProviderSession.class.php
index cf79e9b8..60bc120c 100644
--- a/modules/cart/plugins/cart_provider/CommerceCartProviderSession.class.php
+++ b/modules/cart/plugins/cart_provider/CommerceCartProviderSession.class.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * Provides a session cart provider.
+ * Defines a session array based cart provider.
  */
 class CommerceCartProviderSession implements CommerceCartProviderInterface {
 
@@ -9,7 +9,7 @@ class CommerceCartProviderSession implements CommerceCartProviderInterface {
   const CART = 'commerce_cart_orders';
 
   /**
-   * @inheritdoc
+   * {@inheritdoc}
    */
   public function cartDelete($order_id = NULL, $completed = FALSE) {
     $key = $completed ? self::COMPLETED : self::CART;
@@ -25,7 +25,7 @@ class CommerceCartProviderSession implements CommerceCartProviderInterface {
   }
 
   /**
-   * @inheritdoc
+   * {@inheritdoc}
    */
   public function cartExists($order_id = NULL, $completed = FALSE) {
     $key = $completed ? self::COMPLETED : self::CART;
@@ -41,7 +41,7 @@ class CommerceCartProviderSession implements CommerceCartProviderInterface {
   }
 
   /**
-   * @inheritdoc
+   * {@inheritdoc}
    */
   public function cartOrderIds($completed = FALSE) {
     $key = $completed ? self::COMPLETED : self::CART;
@@ -49,7 +49,7 @@ class CommerceCartProviderSession implements CommerceCartProviderInterface {
   }
 
   /**
-   * @inheritdoc
+   * {@inheritdoc}
    */
   public function cartSave($order_id, $completed = FALSE) {
     $key = $completed ? self::COMPLETED : self::CART;
diff --git a/modules/cart/plugins/cart_provider/interface.inc b/modules/cart/plugins/cart_provider/interface.inc
index f62cad1a..5abbe577 100644
--- a/modules/cart/plugins/cart_provider/interface.inc
+++ b/modules/cart/plugins/cart_provider/interface.inc
@@ -7,18 +7,18 @@
 interface CommerceCartProviderInterface {
 
   /**
-   * Deletes all order IDs or a specific order ID from the cart.
+   * Deletes either all order IDs or a specific order ID from a carts array.
    *
    * @param $order_id
    *   The order ID to remove from the array or NULL to delete the variable.
    * @param $completed
    *   Boolean indicating whether or not the operation should delete from the
-   *     completed orders array instead of the active cart orders array.
+   *   completed orders array instead of the active cart orders array.
    */
   public function cartDelete($order_id = NULL, $completed = FALSE);
 
   /**
-   * Checks to see if any order ID or a specific order ID exists.
+   * Checks to see if any cart order ID or a specific cart order ID exists.
    *
    * @param $order_id
    *   Optionally specify an order ID to look for; defaults to NULL.
@@ -27,7 +27,8 @@ interface CommerceCartProviderInterface {
    *   completed orders array instead of the active cart orders array.
    *
    * @return
-   *   Boolean indicating whether or not any cart order ID exists.
+   *   Boolean indicating whether or not a cart order ID exists for the given
+   *   parameters.
    */
   public function cartExists($order_id = NULL, $completed = FALSE);
 
@@ -50,7 +51,7 @@ interface CommerceCartProviderInterface {
    *   The order ID to save to the array.
    * @param $completed
    *   Boolean indicating whether or not the operation should save to the
-   *     completed orders array instead of the active cart orders array.
+   *   completed orders array instead of the active cart orders array.
    */
   public function cartSave($order_id, $completed = FALSE);
 
diff --git a/modules/order/commerce_order.module b/modules/order/commerce_order.module
index 41cd8afa..a8d6ab7e 100644
--- a/modules/order/commerce_order.module
+++ b/modules/order/commerce_order.module
@@ -271,7 +271,7 @@ function commerce_order_configure_customer_profile_type($customer_profile_type,
 
 /**
  * Configures the customer profile reference fields attached to the default
- * order type when modules defining customer profile types are enabeld after the
+ * order type when modules defining customer profile types are enabled after the
  * Order module.
  *
  * @param $modules