As early as 1766, the practice of applying non-import agreements against imports and trade with Great Britain was introduced by the cities of the American colonies. The Sons of Liberty were in favour of the use of non-import agreements and similar boycott tactics. The Stamp Act was repealed due to joint non-import agreements between the U.S. colonies. New York merchants first implemented the non-import agreement to protest the Stamp Act, and they managed to convince merchants in other cities to do the same. Boston was one of the cities where New York merchants were persuaded to participate in the non-import agreement to fight the Stamp Act. As a result of the successful boycott and pressure from British merchants who lost money, Britain relented and eventually repealed the Stamp Act. Other US cities have also implemented similar non-import agreements to oppose unpopular British policies. The use of raw materials, goods produced in the colonies, and the ingenuity of the Yankees were the order of the day.
Meanwhile, the American colonies experimented with the idea of being self-sufficient and not relying on the homeland. This experience will prove invaluable, because in a few years during the Revolution, the British Royal Navy will block the American coast and close many major port cities. During the Boston Non-Importation Agreement, traders and merchants agreed to boycott goods subject to the Townshend Revenue Act until taxes on those goods were lifted. Some essential products have been exempted from the boycott, such as salt, hemp and duck cloth. Smuggling was widespread. This was a direct violation of navigation laws. Almost all American communities profited from or participated in the smuggling of illegal goods from Dutch, French and Spanish traders. Smuggling was not only a cheaper alternative to taxed British goods, but also served as an effective means of resisting and undermining British policies.
Boston was full of contraband and smugglers. The Sons of Liberty obtained funding for their organization through lucrative smuggling operations. Smuggling financed much of their resistance to British authority. Samuel Adams, John Hancock and Paul Revere were all known as notorious boston Patriot smugglers. .