I've worked at Costco for 18 years. These 8 Kirkland Signature items feel high-end.

• I've worked at Costco for 18 years, so I have a few favorite high-quality items I like to get there.
• In my opinion, the Kirkland Signature eyeglasses are comparable to those of designer brands.
• The Kirkland Signature hard seltzers are tasty and perfect to bring to parties or tailgates.

I've worked at Costco for 18 years and love picking up high-quality products for my family. Oftentimes, I buy items from Costco's house brand, Kirkland Signature, which makes over 350 products , from food items to home essentials.

I find that buying products from the Kirkland Signature brand, which made up about a quarter of Costco's revenue in 2021 , saves my family money.

Here are eight high-quality Kirkland Signature items I grab for my family of four at Costco .

Prices may vary by location.

The Kirkland Signature cage-free liquid egg whites help me reach my protein goals.

My family and I try to maintain a protein-rich lifestyle with the help of items like the Kirkland Signature cage-free egg whites .

I eat these egg whites five times a week to reach my protein goals and feel full. If you enjoy egg whites and want a great deal , I recommend getting them at Costco.

Each box contains six cartons for $11.40.

I get the Kirkland Signature salmon-and-sweet-potato dog food for my pet.

I always want to buy high-quality food for my pet , so I choose Nature's Domain Kirkland Signature salmon-and-sweet-potato dog food. I love that it's grain-free and contains vitamin E, prebiotic fiber, and omega fatty acids.

A 35-pound bag of the salmon-and-sweet-potato dog food is $53 at my location.

The Kirkland Signature bath tissue is one of my essentials.

The Kirkland Signature bath tissue is the only brand of toilet paper I buy. This soft tissue is much better than most brands I've purchased and is pretty affordable at Costco.

I like how the package comes with individually wrapped sets of six rolls, so I can easily store some bundles in the closet and place others in the bathroom. A pack of Kirkland Signature bath tissue with 30 rolls is $23.50 at my Costco.

We pretty much only use the brand's alkaline AA batteries.

The Kirkland Signature alkaline batteries are my go-to. We need batteries for many things nowadays, and having these on deck for toys, games, and remote controls is essential.

The Kirkland Signature batteries have a 12-year shelf life, which is comparable to other leading brands. At my store, each package of 48 batteries costs $16.

I've never regretted buying my 12-piece nonstick cookware set.

I cook every day, and finding nonstick pots and pans that I liked took me a while. Less than a year ago, I tried the Kirkland Signature nonstick hard-anodized cookware set and haven't been disappointed.

This cookware set contains 12 pieces, including saucepans, skillets, and lids. It's handwashable and oven-safe up to 400 degrees Fahrenheit.

I bought this cookware set for $130.

The Kirkland Signature hard-seltzer variety pack is great to bring to parties.

Kirkland Signature hard seltzers are perfect for parties and tailgates. The 12-ounce cans contain 5% alcohol and come in mango, grapefruit, black-cherry, and lime flavors.

The 24-packs of Kirkland Signature hard seltzers are $19 at my store.

I never have to worry about ripping the brand's Flex-Tech 13-gallon kitchen trash bags.

I promised myself I would never buy trash bags from anywhere else but Costco. Compared to the offerings at other stores, the Kirkland Signature Flex-Tech kitchen bags are the best price I've seen — I can get a year's supply for about $20.

These trash bags fit perfectly in my 13-gallon trash can. They have great stretch and drawstrings, so they can easily be pulled out of a trash can. Every box contains 200 bags, which means each bag is $0.10.

I think the Kirkland Signature glasses are comparable to designer ones.

Every year, my family and I have our eyes examined and pick out glasses at Costco's optical center. Costco carries designer brands, but I think the high-quality Kirkland Signature lenses are right up there with them.

These lenses are stylish, relatively affordable, and covered by Costco's 100% satisfaction guarantee policy . Glasses and sunglasses at my Costco start at $30.

Click to keep reading Costco diaries like this one .

Read the original article on Business Insider