Don't clean sterling silver items unnecessarily, because much cleaning and scrubbing can damage the surface.
But we certainly don't need one that is as big, expensive and unnecessarily threatening to much of the world as the one we have now.
Teams are reluctant to encourage drivers to risk putting a car out of the picture unnecessarily when so much is riding on the sidepods, nose and wings of these automotive advertising boards.
Clanking plate against plate, banging pot against pot, running the water unnecessarily, making as much noise as possible to cover the low murmur of Lisa and his father talking in the next room.
'I have no idea what I'm doing,' I told Paul, unnecessarily, as that much was obvious from the fact that I'd earlier killed the battery after leaving the ignition on while packing.
(I write this using Cablevision's Optimum Online Ultra, which is pretty much unnecessarily fast).
Mr Carney added: "We wouldn't want to detract from that focus... by unnecessarily focussing too much on one indicator".
He added: "We created many chances, we did not give the ball away too much unnecessarily and we kept a clean sheet again".
He sometimes reserves his judgment unnecessarily, again too much the journalist, but the book is otherwise enjoyable.
"For too long America has incarcerated too many people unnecessarily, spending too much money without improving public safety," Julia Stasch, president of the Chicago-based foundation, said in a statement Wednesday.
