Howard's Perceptual Challenge

Howard's Storage World, Miranda. Just because a store is neatly arranged, as you would expect from a storage store, doesn't mean that it makes sense from a shopper's perceptual perspective.  I find this store difficult to navigate, and suspect some of the problem lies with a lack of definition (including backing) between departments, and average wayfinding signage.  When a retailer has many products to sell there is a natural clutter which needs to be managed from a perceptual point of view.  Book stores suffer a similar challenge.  Lots of lines, lots of colour and shapes require some defining elements.  What do YOU think ?