Not quite double headers but 3 consecutive midweek long distance away games.
I can't remember the year but Brentford, Colchester and Hartlepool. I'm pretty sure we didn't lose any of the games too.
Double header, like you, Brizdul Roofers in Bath and Exeter. Had a great long weekend in Weston super Mare drinking with old mates from when I lived there in the mid 80's. Missed Kev's goal having a p155 at Exeter though!!