[Sticky] Avoiding Duplicate Threads

Hi folks,
This is a gentle reminder to avoid duplicate threads on a lesson. Please check carefully to see if a discussion of your lesson has already been posted. (You can try using the search function on the lessons page to locate a thread. It's not foolproof but it's very reliable.) Post your question or tip in that discussion instead of starting a new thread. The purpose of this forum is to have a catalogue of questions and tips for a lesson all in one place.

Thanks!
Tim