You might think buying things in supersized containers and big bags will save you money but that's not always the case.
Some people say sweet things come in small packages, but it turns out some savings also come in small packages!
Personal finance magazine Kiplinger has the top items you should NOT buy in bulk - and the list will probably surprise you.
Instead of buying your favorite breakfast box in bulk at a warehouse club, Kiplinger says it's cheaper to stock up when it's on sale at the supermarket.
For example, a large 30 oz. box of Kashi Organic cereal usually costs $3 MORE than two smaller 16.3 oz. boxes on sale at the supermarket.
The same goes for paper products.
Kiplinger says a 30-roll pack of Charmin Ultra Soft Toilet paper is $19.98 at Sam's Club - or about .67 cents a roll.
But 12-roll packages of the same Charmin toilet paper was on sale at a big supermarket chain for $5.99 - or about .50 cents a roll.
That's a per-roll savings of 25% at the supermarket!
Plus, at supermarkets you can also use manufacturer coupons.
You also don't want to buy things in bulk if they have a short shelf life.
Cooking oil has a shelf life of six months and spices lose flavor after a year.
Some skincare products lose effectiveness within 3 to 6 months and sunscreen has a shelf life of about three years.
Look for expiration dates and beware - ironically - sunscreen loses its effectiveness after being exposed to high temperatures so don't buy oversize containers to tote around year after year.
And Kiplinger says you can usually find sunscreen at a drug store for up to 15% less than at a warehouse club anyway.
Kiplinger also recommends you not buy in bulk soda, canned veggies, and liquid bleach!
Click here to see the rest of Kiplinger's full list of what NOT to buy in bulk.