Final answer:
Trade embargoes are seen as the most common way to bypass WTO guidelines and instill new duties, directly limiting trade in a straightforward manner that protects domestic industries but increases prices for consumers.
Step-by-step explanation:
The most popular way to circumvent WTO guidelines and impose new duties is often through the use of trade embargoes. A trade embargo is a policy option that can be radical and simple, as it forbids any trade at all or trade in certain goods. It's a clear protectionist measure that reduces the amount of goods available in a country, leading to consumers facing higher prices, but allowing the country to protect its domestic industries. While tariffs, quotas, and other trade restrictions can also be employed, embargoes can be more straightforward and have immediate effects on trade volume and practices.
In contrast with other options like currency manipulation, which is indirect, or export subsidies, which require more bureaucratic involvement, trade embargoes can be a direct and accessible tool for governments. Bilateral trade agreements, although potentially restrictive, are usually not designed to circumvent WTO regulations but rather to form closer economic partnerships between two countries that might include some trade concessions on each side.