I sometimes do an old time Rock n Roll medley that might last 10 minutes, if conditions warrant.
I generally use the same style, but occasionally use Songbook for quick change.
I also do a Hank Williams medley, with Your Cheatin' Heart, I Can't Help It If I'm Still In Love With You, Cold Cold Heart, end with Long Gone Lonesome Blues. Then, with one button, switch to I'm So Lonesome I Could Cry; one more button and Lovesick Blues. That's enough Hank for one night, or month.