This thread is for links to useful threads. Anyone who wants something to show up here, post a short (1 line) description of the thread, and a link to it. I will periodically update the main topic to compile what everyone has posted.
Please don't put actual "How To"s in this thread, make a new thread for it and put the link here.
Please don't put actual "How To"s in this thread, make a new thread for it and put the link here.