Just tell them you’re going on vacation.
It never fails. I send out an email to all my clients telling them about an upcoming vacation and suddenly everyone has updates or needs to take a meeting immediately about their Web site they haven’t updated in two years.
I may just start sending out that email even when I’m not going on vacation.
(If you’re thinking of casing the joint to find out if I’m really away, please be so kind to feed our dobermans. Thanks.)