The post office has gone through many very good changes in recent years, they rarely make a mistake, and they are getting packages to us faster. But sometimes things go wrong. Perhaps one of their hubs is experiencing problems. The holiday rush seems to be beginning earlier than ever (often the slow down begins shortly after Halloween). Sometimes something got mis-routed causing it to take longer than the usual 2 - 5 days for a Priority Mail package to reach its destination. All of this is beyond Cat Faeries control.
If your package hasn't arrived after 6 or 7 days of the date we shipped its possible that its at your local post office waiting for you. Yes, the carrier should have left you a note, but often they do not, or the note blows away. If this happened complain to the Supervisor at your local station. Its also possible that a family member grabbed the box and put it in a closet or a room. It could also be with a neighbor.
According to postal regulations a package is not considered completely lost until it has been 21 days since it was shipped. At that time we can replace the items for you and process the insurance claim. See Insurance Claims.