How to modify site ownership, roles, and permissions
How to process payments, collect taxes, and set discounts (for merchants)
A style guide, complete with fonts, colors, and custom site styles
Page section templates your client can reuse
A list of blocks you used (especially those with custom code)
A list of third-party extensions you enabled
A glossary of tags and categories you used to organize content
Accessible design best practices
An SEO checklist
Common errors and how to fix them
FAQs and answers