Like Mn said, not really any way to get directly to he Goodings without a car. It is in the Crossroads shopping plaza, which is across the street from Hotel Plaza...
If you REALLY need to get there and wanna save on some taxi fair, my advice, take the Disney Trasportation bus from FW to Downtown Disney, and then take a taxi from there (DD) to Crossroads. That way the majority of your travel is free. It can't be but 1/2 mile to Crossroads from DD. And taxi's are always waiting around the Downtown Disney area, especially the West Side section.
But the stores at FW have just about everything you need, not at local grocery store values, but it would easy to get anything there.