CRM
A CRM built around how your business actually works, not a generic tool you'll bend yourself around. Contacts, jobs, and follow-ups in one place your team will actually use.
Either you don't have a CRM and everything lives in inboxes, phones, and paper - or you have one that nobody uses because it was set up for someone else's business. Leads slip through, follow-ups don't happen, and no one can tell you who a given customer is without asking three people.
A CRM configured or built around your actual workflow - the pipeline stages you actually have, the fields you actually need, integrated with the phone, email, and scheduling tools you already use. Automated capture from calls, forms, and emails so your team stops retyping. Follow-up cadences that run whether or not anyone remembers.
Every lead is in one place. Every customer's history is one click away. Follow-ups happen on their own and the ones that need a human get surfaced with context. The office manager stops being the human database.