I've been using it to try and figure out the longest consecutive bus route journey in London (648-649-651, disappointingly short) and some other bus related she

I've been using it to try and figure out the longest consecutive bus route journey in London (648-649-651, disappointingly short) and some other bus related shenanigans - all of this was much easier than using pretty much anything else. But on the other hand, it can be really faffy to figure out why your recursive list printer is failing halfway through and restarting three items back...