Downtown Disney is a great addition to the Disney scene, offering many fine shops and restaurants to choose from.  There is now  a Sephora store and the World of Disney will give you an opportunity to buy many of the souvenirs you may have missed while visiting the Park. 

 The Rainforest Cafe is a great place to stop and re-fuel before or after visiting Disneyland.  Downtown Disney has very easy access from the Grand Californian.