[chestervonwinch]

> most of my one-offs are unashamedly terrible.

I never intended this to see the light of day, but since the topic warrants it, here is a python one-liner I'm using to put the indices of combinations of subsets into one list:

combos = map(list,reduce(lambda x,y: x+y,[[c for c in itertools.combinations(range(8),i)] for i in range(1,9)]))

yuck. These things usually end up as a result of testing and tweaking in an interactive shell.