For many people, their first trip to Costco feels a little different from a regular grocery run. The aisles are bigger, the packages are larger, and the number of choices can be a bit overwhelming.
One Reddit user was preparing for their first Costco membership and asked experienced shoppers for advice. They wanted to know how to get the most value from the store, what items were worth buying, and what mistakes new members should avoid.
The responses came quickly, and longtime shoppers had plenty to say.

Go In With a Plan, Not Just a Membership Card
The most common advice was simple: don’t let the deals convince you to buy things you don’t need.
Many Costco members admitted that the store makes it easy to overspend. A low price on a large package can feel like a bargain, but it isn’t a good deal if the item sits unused at home.
Several shoppers recommended making a list before visiting and sticking to it. Without a plan, it’s easy to walk out with snacks, seasonal items, and random purchases that were never part of the original trip.
Related: 7 Stores With Bulk Deals That Rival Costco
Bigger Packages Aren’t Always the Better Deal
Costco is famous for selling items in bulk, but shoppers pointed out that buying more doesn’t always mean saving more.
Some products may cost less per item, but only if you actually use everything before it expires. Fresh produce, baked goods, and specialty foods were mentioned as items that can become wasteful if your household can’t finish them in time.
Many experienced members said the key is knowing your own habits. A giant package is only a bargain if it fits your lifestyle.
Related: 9 Annoying Costco Habits That Make Shopping Harder for Everyone
Your First Trip Might Feel Overwhelming
New Costco shoppers often underestimate how different the experience can be.
The store layout, large displays, changing product selection, and oversized packages can make it easy to lose track of what you’re buying. Some Reddit users suggested making the first visit more of a learning trip rather than a major shopping trip.
Walking through the aisles, checking prices, and getting familiar with the store can help make future visits easier.
Related: Costco Employees Say This Food Sampling Behavior Drives Them Crazy
Shopping at the Right Time Makes a Difference
Several members shared that timing can have a big impact on the experience.
Visiting during quieter hours can mean fewer crowds and an easier time looking around. Others recommended eating before shopping, since an empty stomach can make those bakery items, snacks, and prepared meals much harder to ignore.
Learning the layout over time also helps. Many regular Costco shoppers know exactly which sections they need to visit and which areas tend to lead to extra spending.
Related: We Thought Costco Was Saving Us Money—We Were Wrong
Some Costco Favorites Keep Coming Up
While shoppers had plenty of warnings about overspending, they also agreed that certain Costco items are worth the trip.
The famous $1.50 hot dog combo and the $5 rotisserie chicken were mentioned again and again as standout deals. Many members also praised store-brand products, including paper products, household supplies, and some everyday essentials.
For many shoppers, these are the purchases that make the membership feel worthwhile.
The Membership Can Save Money—If You Shop Carefully
Costco can be a great place to save money, but the savings don’t happen automatically. The biggest mistake new members make is assuming every bulk item is a smart purchase.
Experienced shoppers say the best strategy is to know what you use regularly, compare prices, and avoid buying something just because the package looks like a bargain.
A Costco trip can easily become a money-saving habit, but only if you shop with a clear idea of what belongs in your cart.
