Nothing particularly clever, for instance during a startup script that is setting various global fields and other preferences/defaults like smtp, imap servers, user IDs from the HR system, available merge fields, etc. then we’ll occasionally return to a startup layout that contains a global variable and adds a dot to the variable contents, hence with a refresh window included the user will just see ‘Starting.’, then ‘Starting..’, ‘Starting...’, etc. so they know something is happening.
Mostly, we just let things run after setting Freeze Window.