My "closing your file" is a form email. Takes all of maybe 3 seconds to send. Right before doing that I take their name off any follow up automated emails and any rate reports are likewise eliminated so the earlier email links don't work.
Kinda fun watching people click those links and getting nothing after I have fired them.
And yes, having a block of business with nice renewals changes your perspective and approach. When I was starting from scratch it was very hard to pretend it did not matter if they bought or not.
how did you build traffic to your web site?