I finally visited my 50th state this past week, that being Alaska, before I hit age 50 next year.
My kids made me log this state travel, which has been interesting, to me anyways.
I only count visits by conducting material acts of commerce, and availing yourself of the jurisdiction of the state and only excluding airport visits.
There are only six states where I have never slept a night, though for four of those six, Ive been there at least 3 times (Wva, Ark, Miss, Idaho). My weakest visits are Vermont and North Dakota, both one time, no lodging. Vermont is now my biggest drought visit at 41 years since we spent a September fall day driving from Quebec to New Hampshire. My ND visit was a drunken night in Fargo during a MN fishing trip in Detroit Lakes.
I was stuck on 49 states for 15 years, having reached 44 by age 30.