There&#x27;s something that a lot of retailers don&#x27;t get - never put an obstacle in front of the customer giving you their money. Don&#x27;t let lines form at checkouts. Don&#x27;t clog up the counter with impulse-purchase stuff. Don&#x27;t put displays in the path of customers headed for checkout.  Don&#x27;t make customers jump through hoops with loyalty cards and data entry.  Don&#x27;t do anything that slows the checkout process.<p>There are expensive retail consultants who clean up stores and improve sales by doing this.<p>Gap gets this right. Gap stores have big, clear counters, so you can bring up lots of merchandise and have a place to put it.  This increases sales per customer.  Gap is amazingly successful despite a rather blah product line.