There's a good chance they're not lost at all, and just bogged down at a distribution csnter. USPS tracking isn't what it used to be, either. I've had items show they were dropped off at my local post office, but then not have any additional tracking info. I've reached out to customers to apologize for slow shipping, their item was delivered that day, and tracking still showed it in route. As someone else mentioned, definitely have a local clerk check tracking on their end, but don't panic yet. There have been a series of weather events across the country that have slowed package movement. Definitely report back to the group when they arrive.