Costco stores may be somewhat confusing, but most tend to follow a certain layout.
The front of the store is usually a danger zone for impulsive shoppers. That's where Costco keeps more expensive and temporary displays.
Laegreid wrote that members will see "'luxe' offerings of televisions, computers, and electronics" at the front of the store, as well as "exotic" items like fancy handbags and watches.
"They may be for sale at a much reduced price, but likely for only a fleeting moment," he wrote.
Business Insider's Kate Taylor reported that the middle of the store — or "center court" tends to house the best deals.
Essentials like fresh food are toward the back, in order to draw people in.
"The very outside of the track is home to practical staples, including toilet paper, whose location requires consumers to pass many impulse buys," Laegreid wrote.