Do you often go through embassy websites, scrolling through the group A countries, while knowing well that the chances of your country showing up there is as good as zero? You don’t carry an awesome passport.
Or, you actually have one such passport, however due to some diplomatic beef or reciprocation, you have to apply for a visa for a few countries.
Or, you got in and you want to extend your stay in a country. Maybe, you need a student visa or a temporary resident permit.
I will keep updating this section. If you have any such experience or want to know about a certain visa, feel free to drop me a text.