There is a Target on Harbor. As you are leaving DL a right on Harbor . About a mile down there is a Target there. It is across the street from Hyatt Regency.
And there's a Walmart about a mile northwest at the Euclid Ave exit of the I-5. That center (Anaheim Plaza) also has a Mervyn's, Marie Callender restaurant, a small food court, and the local AAA office.