costing nothing

Daily constant attendance, when necessary, and readiness to respond to the whip at short notice, are assumed as costing nothing.

It is brought to the United States as ballast, costing nothing for the transportation across the sea.

They are easier dried than a single pair of heavy ones; are easily made from old material, costing nothing, and are warm.

A suitable manure is at hand, the kelp washed up by the sea costing nothing but the labour of gathering and transporting.