1.   But no one should underestimate the amount of hard work it would take.

2.   They underestimated the amount of time it would take to finish the work.

3.   Both the CBO and the Office of Management and Budget have significantly underestimated the amount of federal revenues in recent years.

4.   But Engler underestimated the amount of independent and Democratic support that GOP candidate John McCain would get and Bush lost the state.

5.   But UNICEF and WHO analysts also had erred in underestimating the amount of vaccine needed for the final push.

6.   But you can underestimate the amount of foreign affairs experience a governor of a big border state has.

7.   Do not underestimate the amount of water you need to carry and drink.

8.   Experts say travelers often underestimate the amount of fuel that can be saved by lighter packing.

9.   Homeowners often overestimate their ability to live in day-to-day disarray and underestimate the amount of time it will take to complete the job.

10.   Like many early engineers with a background in heating designs, Carrier underestimated the amount of air needed for cooling.