The market’s bigger than you’d think. I do this full time, have for two years. There are a good dozen or so software products that purport to do the same thing,

The market’s bigger than you’d think. I do this full time, have for two years. There are a good dozen or so software products that purport to do the same thing, with mixed results. The problem itself (“the bill is too high!”) is deceptively complex, particularly to a larger company.