I have had good luck using the USPS, knock on wood. I have never ever had to tell them what I'm sending. They do have a standard question they are required to ask as to hazardous substance, glass, fragile, etc. I just say no. They don't really care what we are sending, other than that. There are so many options as far as insurance, shipping time, tracking. You can request a signature for delivery. You just need to decide what works for your situation. I do send quite a few things to my daughter and grandkids who live in another state. I do put my items in some sort of plastic wrapping, either a clean garbage bag or whatever fits. I like the idea of including a name and address inside the package, just in case, but so far haven't remembered that before closing up the package. As far as insurance, I usually just choose the standard amount. We all know these things are actually priceless
I don't ever take the fastest delivery time, like next day, expensive and so not necessary. Usually two or three day is pretty reasonable and often is delivered early.