Three days for cooked roast potatoes or cooked chips.
You can store raw potatoes that are cut in water to keep them fresh in the refrigerator.They will stay good for a few days stored this way. You should cook them as soon as possible.
Scallops can stay in the fridge for up to 2 days before they spoil.
1 day
I've never had much luck with keeping homemade roasted garlic longer than 5 days in the fridge. The most optimal way to store it is in an airtight container drizzled with olive oil (preferably the flavorful oil that was roasted with it!) If it's a store-bought plastic container, trust the expiration date and your nose!
homemade mayonaise can stay in the fridge up to two weeks. Store bought can last about a month in the fridge.
Ten days
potatoes
Dough can typically stay in the fridge for 3-5 days before it goes bad.
Tuna can stay in the fridge for up to 3-4 days before it goes bad.
Raw chicken can stay fresh in a fridge up to 2 days. The chicken has to stay in the fridge and then immediately cooked.
Breast milk can stay out of the fridge for up to 4 hours before it needs to be discarded.
Eggs can stay out of the fridge for up to two hours before they should be refrigerated to prevent spoilage.