6 Unspoken Trader Joe's Rules Every Shopper Should Follow, According to Etiquette Experts

Whether you’re dashing in for Everything but the Bagel seasoning or strolling the aisles for your weekly grocery trip, shopping at Trader Joe’s can be an experience. Known for its quirky charm, friendly cashiers, and fan-favorite products, it’s easy to get swept up in the fun. But even at a laid-back store like TJ’s, good manners matter.

We chatted with Jo Hayes, etiquette expert and founder of EtiquetteExpert.org, for tips on being a courteous customer. Whether you're sampling a snack or navigating a packed parking lot, here's how to shop Trader Joe’s with civility.

1. Know Your Sample Limits

TJ’s is famous for its free samples, and according to Hayes, it’s totally fine to accept one, especially if you're feeling a bit peckish. But know your limits.

“If you like the new corn chips on offer and are hungry from skipping lunch, going back for 10 free samples is not the right thing,” Hayes says.

A sample is just a sample. Taking too many is poor etiquette and inconsiderate to other shoppers. And if you’re not interested, a simple “no thanks” and polite smile does the trick.

2. Don’t Feel Pressured to Chat at Checkout

One of Trader Joe’s signature traits is its famously friendly staff. But if you're just not in the mood to make conversation, here's what Hayes says.

“Some people love chatting with a chatty cashier; others don’t,” Hayes says. “One can still be polite and civil without engaging in small talk.”

Greet the cashier with a quick hello, but feel free to keep your answers short and avoid eye contact if you’re trying to signal that you’re in a rush.

3. Return Items the Right Way

Trader Joe’s has a generous return policy, even on opened food. But there’s a right way to handle it. Deliver your message with politeness and clarity to ensure a smooth interaction for everyone involved.

“Kind, calm, clear is the MO,” Hayes advises.

4. Be a Parking Lot Pro

If you’ve ever pulled into a Trader Joe’s lot and immediately regretted it, you’re not alone. Many locations are notorious for tight spaces and traffic jams. Hayes has one firm rule: slow down.

“Fifteen miles per hour is usually the signed limit, but many motorists go well above this. This is dangerous for all concerned,” she says.

Keep your phone down, use your blinkers, wave when someone lets you go first, and don’t swoop in to steal a spot someone else was clearly waiting for. If you're on foot, return your cart to the proper corral and stay aware of your surroundings.

5. Don’t Hoard the Viral Items

Trader Joe’s launches limited-edition items all the time, but they tend to sell out quickly. If you’re lucky enough to spot a restock, pause before grabbing six jars of the latest cookie butter creation.

“Moderation, restraint, and consideration for others is the MO here,” Hayes says.

6. Mind Your Bags

If the cashier leaves you to bag your groceries, don’t let your system slow down the entire checkout lane.

“If you’ve only got a few things, bag them quickly. If you’ve got a large haul, load it into your cart and bag it outside,” Hayes says.

It’s an easy way to keep the line moving and keep fellow shoppers happy. And at the end of the day, a good Trader Joe’s trip is not just about grabbing your necessities. To make the experience enjoyable for yourself and others, be aware of your surroundings and considerate of the people around you.