Say. Do not use say in the sense of order or command.

Wrong: Your mother said for you to come home at once.
Right: Your mother said that you should come home at once.

Scarcely. Do not use scarcely after a negative. See §46.

Wrong: There was not scarcely a pound of meat for us all.
Right: There was scarcely a pound of meat for us all.

Seldom ever. Do not use seldom with ever. Say instead seldom or seldom, if ever.

Wrong: Fires seldom ever occur.
Right: Fires seldom occur. Fires seldom, if ever occur.

Shut of. Do not use shut of in the sense of rid of.

Wrong: We are shut of him at last.

Sight. Do not use sight in the sense of many or much.

Wrong: A great sight of people flocked to hear him.
Right: A great many people flocked to hear him.