How often has anyone had trouble with USPS tracking? And how long did it take you to receive your package? This will be my first. I ordered something from Santa Clarita, CA and they used First Class Mail to ship it. They mailed it out on 1/5 and so far today nothing has changed since the last update which was "In transit to the destination." It's been 4 days since the last update and today's Saturday, which means after mail gets delivered today we're going into Monday which is a new week. I called USPS and they said they would file a claim for me and I should get a call in 2/3 days. I've never had this issue before as I always got my packages, but if this one ends up being lost or it'll be my first one. I know USPS always sucks at updating tracking, but how many of you has this happened to?