Winterizing...did I miss anything?

I also remove my barbeque, Coleman stove, etc. to eliminate any attraction to the unit for pests. One other thing I do after pumping antifreeze through the system is turn off the pump, depressurize the system, and manually hold the check valve open on the City water connection while my wife bumps the pump to displace the water out of the connection and replace it with antifreeze.

I will be doing this in a couple of weeks as well and putting it back in indoor storage for the winter. I hate this time of year!