Without a system, scope creep gets caught by memory, if it's caught at all — usually weeks late, when the extra work is already done.
The gap isn't effort — most agency owners genuinely try to hold the line on scope. The gap is timing: by the time creep is visible, the work is already done. Closing that gap is the entire premise behind MarginFlow. Read the step-by-step walkthrough or see it applied to your kind of agency.