A lot of songs have a framing verse as the first verse - the first verse seems like it's going somewhere ("As I walked out...") but it turns out to be a set-up for the second and subsequent verses ("I overheard a young ticket inspector lamenting for his true love who had gone to work for a pork butcher on the other side of town"). Repeating the first verse of a song like that should work well, I think.

I used to sing The Bonny Bunch of Roses quite a lot, and always intended to repeat the first verse at the end; whether I actually did would depend on how well I thought the song had gone down up to then.