General Bridge Questions

I am going to be making some short videos this summer to help my students keep learning without committing a lot of time to lessons.

I am looking for common questions that are easily answered in a short video.

Here are two examples of subjects I have on my list already:

1) Should I declare my 4-4 fit or 5-3 fit?

2) Should I open 1NT with a 5 card major?

Please use the comment section of this article to suggest possible topics.  I may or may not make videos on your topics and will not reply to the suggestions but they are much appreciated.