Known for offering low-cost products in bulk, Costco is a great place for those who want to scrimp and save. But it can be a complete money sink if you’re an indiscriminate shopper. Here is a list of 15 items you should buy and 15 you should avoid at Costco. Read on to save more bucks!

4Avoid: Condiments And Spices

Large packaged condiments and spices at Costco are probably not a good buy, unless you can figure out a good way to use up 32 ounces of ketchup or several cups of turmeric and oregano in a short period of time. Once they are opened and exposed to the air, it’s only a matter of time before their flavor fades. USDA (US Department of Agriculture) reported that ketchup has a shelf life of six months and mayonnaise just two, and ground spices tend to go stale after only six months.