There are some really neat resources that will greatly improve chances of a package, regardless of size, arriving safely. They are a bit pricey so their use would depend on the value you place on your item and the circumstances under which it is shipped.
1. Ham Radio Shipping Boxes http://www.hamradioboxes.com/
Custom made shipping boxes out of cardboard or wood
with suitable cushioning inside. Obviously more appropriate for the high four to five figure HF radios or test equipment but, how much value do you place on the equipment?
Impact, tilt, and temperature sensors designed for one-time or repeated use to report exactly what abuse your object has endured in transit. I can't wait to use these next time my service monitor needs calibration! Obviously, I'd rather the package gets where its going and back safely, but it would sure be fun to answer a shipper's denial of claim with specific data on exactly what the package went through during shipping. Again, more suitable for the more pricey equipment but to each his own. And, again, using these could sure be fun!
Back into hibernation!