Produce
— a Costco worker from Idaho, an employee from Hawaii, and a worker from Minnesota, who added, "While our produce department is one of the best in the business, I personally don't eat veggies fast enough to buy in bulk."
Tires
— a Costco worker who just said they'd been working for the chain "too long"
Packages of meat
— a Costco employee from California, who added, "It's too much for my household."
Mac and cheese
— a Costco worker from Texas
Fruits
— a Costco employee from Florida, who added, "They go bad very quickly."
Bakery products
— a Costco worker from Iowa, who added that the "packaging is just too big."
Condoms
— a Costco employee from Ohio
Shoes
— a Costco worker from Washington
Sushi
— a Costco employee from Illinois
Kirkland brand clothing
— a Costco worker from Arizona
The gallon-sized mayonnaise jars
— a Costco employee from Minnesota
Salad
— a Costco employee who's worked in 10 states, who added that, "I don't eat the huge quantity fast enough, then it rots. Waste of money."
Any food they haven't tried before
— a Costco employee from Illinois, who added, "Because then I'd have a six month supply."
Are you a Costco employee with a story to share? Email acain@businessinsider.com.