Pickles : I used to loathe spending so much money on condiments like ketchup, mayo, and jam, because I could never seem to use it all before it expired. That changed when I found out that many condiments, including salad dressing, are consumable after their sell-by dates. If they’re open, give them the old sniff test to see if they have spoiled. But if they’ve never been unsealed, condiments can be stored in your cupboard for longer than the package would have you believe.