The real lesson here is: Break the rules. The rules were, 2 hours and $5. No one spent only two hours and only $5. The first suggestion from the class was a

The real lesson here is: Break the rules. The rules were, 2 hours and $5. No one spent only two hours and only $5. The first suggestion from the class was a $50 house party. Tire pumps cost more than $5. The restaurant reservation scheme occurred the next weekend. The last, most creative team was perhaps the only one that actually followed the rules, assuming they sold the class time in those two hours.