You have a captive audience standing in line. Sell them something while they wait. Retail sales are often pure bonus margin.
- Beans: Retail bags of the coffee you serve. Ensure roast dates are visible.
- Brewing Gear: V60s, Aeropresses, filters. High margin hard goods that position you as an expert.
- Branded Merch: T-shirts, totes, mugs. This implies brand loyalty. If someone wears your shirt, they are paying you to advertise for you.