Cooking Oil
Unless you’re running a diner or deep-frying turkeys on Saturdays and Sundays, bulk cooking oil isn’t the good deal it appears to be. The Kirkland Signature cooking oils are sold in two-packs on Costco.com. The canola oil two-pack contained 2.84 liters of oil per bottle, while the olive oil and Mediterranean blend oil two-pack contained 3 liters of oil per bottle.
Salty Snacks
If you buy them in overly large packs, you risk your salty snacks becoming monotonous, just like when you buy cereal in bulk. Smaller bags of name-brand potato chips, tortilla chips, and similar salty snacks are frequently on special offer in grocery stores, sometimes at a 50% discount, when snack manufacturers run some of their best promotions and stock up ahead of major sporting events.