Manage custom menus

Update the navigation for Lauren's small agency site. Add a Services parent menu with Consulting and Retainers as child items, place Blog after Services, and add a Contact item that opens the contact page. Save the menu to the header location, then preview the site on mobile to confirm the menu collapses correctly before asking Lauren to review.

Before I send the new menu to Lauren for approval, make it easy to accept: show how the Services group reduces clicks to consulting pages, highlight any pages missing featured images that break mobile spacing, list menu depth beyond two levels that could confuse users, and flag any external links that should open in a new tab.

I reorganized Lauren's header menu to add Services and Contact but on mobile the menu now overflows and hides the last items. I'm worried the theme's mobile breakpoint or a long menu label is the issue, but I can't test every device. What is the most likely cause and the quickest fix so the menu works on phones before the client meeting at 10:30?

Over multiple sites we add pages and the header menus become cluttered, mobile-unfriendly, and slow to update. I want a habit that keeps navigation usable as sites grow. What ongoing rules and one simple periodic task will preserve clarity and prevent last-minute panic before client demos?