McCaig discovers that Sam's Club and Costco's pricing are regularly among the highest and infrequently among the lowest.
Rotisserie chicken
The Sam's chicken, with its unhealthy 550 mg of salt per 3-ounce serving, came in lowest among rotisserie chickens from various grocery chains.
Butter
McCaig notes that it's important to use strategy when shopping at big-box stores. She avoids impulse purchases by keeping an eye out for deals and promotions in the box store flyers.
Bread
When McCaig checked, the price of Sara Lee bread at Sam's Club was 9 cents per ounce. At Costco, Sara Lee priced more — 10 cents per ounce.
Hamburger buns
According to Passionate Penny Pincher's analysis, Sara Lee buns at Sam's Club cost 17 cents each, which is significantly more expensive than Aldi's L'Oven Fresh price of 7 cents each.
Brownie mix
If you buy brownie mix in bulk, Sam's Club might not be the best place for you to get it. Hershey's brownie mix was offered there for 11 cents per ounce, according to Passionate Penny Pincher.
Vegetable oil
Vegetable oil from Sam's Club Member's Mark cost 6 cents per ounce, according to Passionate Penny Pincher's investigation. The costs were comparable to those at Walmart and Aldi.
Cooking spray
When Passionate Penny Pincher investigated, Sam's Club Member's Mark brand cooking spray cost 32 cents per ounce.