There were always hidden costs to big projects, including more than a little stress and worrying.

Companies hide add-on costs, of course, because it is lucrative.

The obvious ones are time and money, but there are also hidden costs.

But there may be hidden costs associated with gift cards, so it pays to know what's involved.

Or are they operating at a lower level, which has hidden long-term costs for our society?

Beware of what you buy, the Old Duke had said, for there may be hidden costs.

Bad coping strategies are those that have hidden costs: they produce toxic waste which makes things worse, not better, in the long run.

Moreover, he noted, the Net-produced versions have hidden costs.

For example, methane may have hidden environmental costs that are not reflected in the table.

There may be hidden costs buried in the incentive programs.