Set the browser to Full Screen view, to give this worksheet, and your code, as much space as possible.
Select File > New to start a new program,
then select File > Auto Save and complete the dialog to ensure that your code is always saved.
Remember that you can use the Undo button (or Ctrl-z) to undo recent changes.
Remember that if the code editor has a tinted background it does not have focus and will not respond
to edits. To give it focus click within the editor. (If a program is running, you will need to stop it first.)
Use the auto-completion options as much as possible, because this reduces errors.
Use the Hints only when you need them - as all use of hints is recorded. Use of Help is encouraged and not recorded.
Use the Trim button periodically to remove leftover new code prompts.