Fresh meats will generally spoil in three days. Eggs should last until the expiration date. Most fruits and vegetables will not last longer than five days. Condiments last several months.
I believe it doesn't matter how long it is in the fridge. As long as the date on the package isn't expired you're fine. On products that don't have dates like fruits & veggies I would suggest if it's not eaten within one week I would toss.
