I haven't been fortunate enough to have that experience yet (thankfully!), but one day last week my wife tells me that my license renewal notice came in the mail. I won't have lived in this state for three years until November, so I thought it was awfully soon for my license to be expiring. Still, I was in the middle of something and went on about my business.
I remembered the conversation yesterday and checked the bill rack in the kitchen for my notice. There it was, and yes indeed, I was being summoned for a renewal. In Missouri, where my license would be expiring if I still held a license in that state, except I haven't since shortly after I moved here! You gotta love the efficiency of a bureaucracy!