Boxes opened up and taped to the main pathways throughout the house. Sheets or foam tied to the banisters. Don't forget to remove doors in tight spaces.
These are all things we can do to save time & headache. The other thing we can do is pay the mover to do it. We may save some money doing it ourselves, but they will do it effortlessly. No need to track down tools or remember where we put the bolts.
Movers don't mind being helpful. Great movers do it as a compliment of service and will perform with being told. We can always pay attention to the planning & know who the veteran movers are.
Either way we do it, it has to be done, and should save money in case anything was to happen.