I can state two things with confidence:
1) Asking "What are some good resources for learning English?" is off-topic. However, we have a meta thread devoted to that topic.
2) "What are some good ways to learn English quickly?" is also off-topic (as explained here). Yet we get asked that question rather often (understandably so, particularly by newcomers; see, for example, this question).
I'm wondering if it might be worth starting a community thread, much like the resources thread, only it would be devoted to things that helped others learn English better or more quickly. That way, those who want to share a good trick will have a place to share it, and those who want to learn about such tricks will have an ELL resource where they can be pointed to.
Is there any reason why we should or shouldn't have such a meta thread? (If there seems to be much consensus that we should, maybe we can start one soon).