people protesting and making large riots to destroy most of the town.
boycott
most colonial protest took place in Boston
Yes and it works everyday. If you are able to go to the church you wish ( or not go) it is effective. If you are able to protest something in the government or your are it is effective. If you are able to say what you wish ( except to make a threat against a government offical) it is effective. If you are able to own a gun it is effective. Each of these is protected in the Bill of Rights.
the stamp act
Lawyers
The protest methods that William Wilberforce had were quite diverse. In most cases, he used lobbying and campaigning in his protests.
boycott
The boycott of the stamp act was the most famous reaction of the patriots (not to mention one of the first) and caught the attention of the British empire. This is an arguable subject, but I'd consider it logical to consider the boycott as the most effective because it was the first protest and the one that sparked the most extreme reactions by the patriots towards the British. Most of which involved getting hammered and burning down buildings or threatening enforcers with effigies hung on trees by the neck.
boycott of British imports
There is no single method which is most effective in all situations.
Lies.
The two most effective methods of warning about a tropical cyclone are through official meteorological agencies issuing timely alerts and warnings to the public, and through public education and awareness campaigns to help communities prepare and respond to the impending storm. Additionally, having a strong communication network that includes media outlets and emergency services can also help disseminate information effectively.
logos
The most effective methods of public transport in South Korea (Seoul) are ~ Bus ~ Subway ~ Train
There are many effective weed control methods. The most effective weed control method is the act of mowing. One can purchase a mower at popular stores such as Lowe's and Home Depot.
Not much more than existing - he spent most of his adult life in jail with essentially no communication to the outside. When he was released, apartheid was already about to crumble. Before his imprisonment he organised labour and student bodies to protest against apartheid.
There are quite a number of various methods for teaching children to spell. Which is most effective is arguable. The most reliable method would be repeated practice and testing the children. Practice makes perfect.