My 2c worth:
Must have:
-slide toppers
-spare tire and tire cover (most are included)
-wheel chocks and levelers
-proper gauge extension cord (30/50amp)and dog bones for each
-water regulator, water filter, potable water hose(white)
-coax cable for TV hook up
-sewage hose and sewage hose wrench
NOTE: Look at your configuration to see where the service outlets are. Some trailers have them at the back while others may have them on forward... this will determine how length of extensions needed
Nice to have:
*electrical extension cord reel
*articulated 5th wheel and/or cushion 5th wheel
*JT Strong-Arm for stability when parked
*Auto/electric levelers
*Patio Shade awning add-on
*Surge protectors (some say this is a Must have item)
Essential:
~~~~ Good attitude, respect for fellow campers, healthy respect for safety,a zest for travelling and outdoor living.
PS: I never leave home without my wife of 44 years. She keeps me young at heart and makes all the above worthwhile.
Enjoy !!! GPG