The following time you go to Costco, you can skip a few aisles that might be on your list and avoid a busy area that will make the staff wonder what you're doing there.

Former employees claim that certain products in the food, automotive, and home goods areas aren't worth purchasing.

Also Read:Costco Employee Website

The best buying suggestions were assembled by Best Life Online from numerous threads and videos that ex-employees of the warehouse megastore had posted on the internet.

The studies revealed a clear pattern: every devoted shopper is aware of Costco's finest prices, but few are aware that their behaviour routinely causes store employees wince.

That includes shopping while carrying food, a habit shared by anyone who enjoys the reasonably priced, easily accessible food court area at Costco.

According to the outlet, eating while shopping is one activity that store employees will "judge" customers for, citing a former employee who expressed their ire on Reddit.

Some employees claimed they had seen people walking around with hot dogs and other products, not simply customers pulling trolleys.

One user said, "Two days ago I spotted a mom and her daughter eating pizza on a showcase couch. "Yikes!"

Another said, "I've only done it once and I felt odd doing it.

This "unwritten regulation" does not apply to the free samples you can find at various locations throughout the store. Snack away; these bite-sized servings are meant to be consumed.

There are a few particular purchases you're better off making at your neighbourhood grocery store or supermarket if you're looking to get the greatest deals.

The first item is ground coffee, which lots of caffeine addicts could be tempted to store up on. However, Best Life personnel caution that purchasing this item in bulk is a waste of time.

The outlet said, "You won't use it before it goes bad." The similar statement is made for spices, which are abundant.

Strangely enough, bottled water is the other grocery item to stay away from at Costco, though you must avoid a particular type.

Although Kirkland, Costco's in-house brand, is well known for selling everything from button-down shirts to vodka, one Redditor called the bottles

Instead, pick from the several alternative brands offered in Costco's automotive section.

Ask your favourite neighbourhood Costco staff for advice if you need it; they should have lots of shopping tips to provide.