Today in class my group did our grammar schammar on fewer and lesser.  Fewer refers to things that are countable.  An example for fewer is : We had fewer people at the fundraiser than we had hoped.  Generally, less refers to things that are not comfortable.  An example of this is : Less talking would help my concentration.

Extra Help
1. I need less/fewer advice and more open-minded questions.
2. We had less/fewer injuries on the team than our coach expected.
3. No fewer/less than eight students flunked the exam.
4. We had fewer than/less than two hours before we had to take the exam.
5. Fewer/Less seats were filled for the concert because of the rain.
6. No fewer/less than 30 people applied for the job.
7. The muffin should cost a dollar or fewer/less.