Consider documenting answers to questions that come up frequently in discussion sessions

Noted by @tobyhodges that there are certain questions that come up repeatedly in discussion sessions (especially about how the checkout process works).

Start by reviewing the discussion sessions and the recurring questions identified in the issue, especially those about how the checkout process works. Determine which questions and answers should be documented, where the documentation belongs, and what set of published answers would satisfy the issue.

Written by the indexing model from the issue text.