Two heads are better than one
If you look beyond the obvious
Lateral thinking is fun!
Your solution to a problem may not be anyone elses
but if it gets the job done.....who cares?
Variety is the spice of life!

..........and if you do have to carry a long plank
then two heads are better than one
even if for no other reason than that:-
Each head usually comes with two arms and a body attached!