staying warm, i hope. >> yep imt. >> walk us through. people get very confused about what it all means. >> we want you to save us money without making us sick. >> save you money on that. first of all, we have the sort of use by dates that are on foods. we think about it in terms of safety. we think it in terms of quality. we think about it in terms of freshness. whether or not a manufacturer or a store should have something on their shelves. the things with the shortest life. you have things like fresh cut meats, cold cuts, yogurt. eggs can be used for about a month after the date on there. again, you want to check dates. things like packaged salad. what happens with them and cut-up fruit. because you've exposed some surface areas. those will go bad quicker. >> we want safety. make sure we don't get sick. meat always makes me nervous. >> exactly. something like ground beef, if you don't use it within two days of buying it -- this is a fresh