Need help sourcing on this one ASAP

Sources on surprising things about grocery stores (former employees, authors, trend experts)

Working on a feature for AARP and could use some help with sources on this bad boy:

Looking for expert to weigh in on this feature: Things Your Supermarket Doesn't Want You to Know.

Insider-y things you didn't know about grocery stores from:

-Business experts

-Grocery store employees (past or present)

-Trend experts and marketing professors

-Shopping experts

-Authors

-Current grocery store employeees

Looking for things like:

• water sprayed on produce not just to keep it fresh - also adds weight since sold by the pound

• The store layout is strategic to encourage more spending

• Bigger shopping carts encourage you to fill them up

• Banana displays use special lighting

• Some stores spray in fake baked good aromas to encourage shoppers to buy products

• Best by dates are conservative

• Music and lighting are strategic to set the mood

• Impulse buys are strategically placed

Please send any leads my way to NCPajer@gmail.com

Thanks!!