14 Fabulous Costco Deals You Must Buy Before September Ends

After Labor Day sales and summer clearance events, September seems like a slow month in stores. Sure, you might be searching for well-priced basics, but most shoppers are looking ahead to Black Friday and pre-holiday discounts. But that doesn't mean you can't still find great deals.

Perfect for savvy shoppers looking to save money, Costco is moving into fall with a mix of essentials and seasonal items. You won't see major markdowns, but plenty of items could be a smarter buy now than they will be in October. We browsed Costco's latest and found solid picks in almost every department, but they might not last long.

Here are 14 fabulous Costco buys to grab before September ends.

Editor's note: Prices and availability are subject to change and may vary by location.

Price: $16.99

Soft, fleece-lined shirt jackets are perfect for layering in cooler weather. The price is very right for this one, and you can choose from blue, tan, and gray/tan plaid.

It feels heavier than a regular flannel shirt, so you can leave it open on warmer days or button up as the weather gets colder. Considering the price, why not grab two?

Price: $19.99

If your skin gets dry and itchy in the fall and winter, this rich, hydrating cream from a trusted brand may give some relief. It starts working immediately to moisturize even sensitive skin for up to 48 hours.

Plus, it's hypoallergenic and won't clog pores. With a jar in the bath and bedroom, you'll have softer, smoother skin without breaking the bank.

Price: $11.99

Did you know that pumpkin seeds are one of the latest superfoods? It's no gimmick. Pumpkin seeds give you 8 grams of protein per serving, and they're rich in nutrients and minerals, including magnesium and zinc.

These are crunchy, slightly salty, and USDA organic. For a big, resealable bag like this, you can't beat the price.

Price: $15.99

The price of Listerine went up drastically in recent years, but this two-pack offers a total of 3 liters at a fabulous price — even lower than Walmart's.

Listerine fights plaque and gingivitis and kills 99.9% of germs, which helps keep your gums healthy and breath fresh. It does more than just taste minty.

Price: $35.99

Plastic has such a bad rap that even Tupperware is switching to glass. But Pyrex has been making heat-resistant glass cookware and dishes for over 100 years.

"Refrigerator dishes" evolved into this attractive set with nine round, square, and rectangular glass storage containers with lids. Safe in the oven and microwave (minus the lids), plus the fridge and freezer, this set will last far longer than plastic. Smart investment!

Price: $13.69

Everyone knows Dawn Platinum works on dishes, but did you know it's also fab for greasy tools, car wheels, and laundry stains? You can use less than regular Dawn to cut through oil and grime fast, so this big jug will last longer.

Take advantage of this great price if you want one soap that does more than just clean plates.

Price: $11.49

Almonds are the perfect snack when you need energy that lasts longer than a cupcake. They're crunchy and taste great, with the classic smoky-salty flavor people love. 

They're nutritious, too, with a solid dose of protein, along with vitamin E, magnesium, and calcium. The single-serving packages are easy to grab and go, and at less than a dollar each, they're a solid pick for September.

Price: $12.99

Old Spice is a classic for men, although its first product, introduced in 1937, was actually for women. This set of five aluminum-free sticks of Pure Sport scent deodorant fights odor for up to 48 hours.

At just over $2 for each regular-sized 3-ounce stick, the price is far better than buying one at a time.

Price: $14.99

You might not know that vitamin D deficiency is prevalent in the U.S., but this nutrient is essential for bone, muscle, and even dental health. Your skin naturally produces it, but if you avoid the sun and don't get enough vitamin D in your diet, this supplement can help fill the gap.

The price is right for well over a year's supply.

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Price: $27.99

You know extra virgin olive oil is good, but when it's from Italian-grown olives that are cold pressed, it's the best. The flavor is strong yet smooth and fabulous in salad dressings, pasta, dips, and more.

It's certified kosher and has earned 4.8 stars. One reviewer calls it "the best deal on real olive oil."

Price: $459.99

A set of stainless steel cookware isn't simply a purchase; it's an investment. These heavy-duty pots and pans heat evenly on all cooktops, including induction, and they're oven- and broiler-safe.

You'll get three frying pans, two saucepans, one sauté pan, and a large stockpot, plus lids from a trusted brand. At Target, it's almost $100 more (minus a frying pan), so grab it while you can.

Price: $21.99

Puffer vests are trending, and there's no sign of letting up. This vest is lightweight, easy to wear with a sweater or hoodie, and features a front-zip closure, zip pockets, and a high collar to help block the wind. It's perfect for layering in cold weather.

Choose from deep purple, black, and cream colors, and sizes up to 3X.

Price: $44.99

Sometimes, you just need something luxurious. Look no further than plush bath towels. Crafted from pure cotton and silk, these are super-absorbent, gentle on your skin, and OEKO-TEX^® Made in Green certified.

Choose two generously sized bath towels or a set of hand towels and washcloths in six dreamy colors. Luxe is never cheap, but compared to other retailers, these are a steal.

Price: $31.99

The beauty of the Venus Comfort Glide is its adaptive pivoting and built-in gel bars. Shaving is so much easier! The blades are sharp but smooth, and the handle has a soft, ergonomic grip.

Each cartridge lasts a long time, depending on use, and works well for everyday shaving. At just over $2.00 each, it's a fabulous find.

If you're trying to save money on things you already use or want, these are fabulous buys. They're reliable name brands or Costco's house brand, helping you keep more cash in your wallet.

September might seem quiet in the retail world, but stores like Costco are already shifting gears. Shelves are being cleared for Halloween, Thanksgiving, and the winter holidays, and when that happens, popular everyday items don't always stay in stock.

If something on this list caught your eye, don't wait too long.