Generate a functional spreadsheet for output.

[wscott]

It would be nice to give people a spreadsheet with all the balances and taxes computed automatically and summary statistics and then fill in the numbers from the model. This way the user that disagrees with an early Roth conversion (for example), they can try changing it and seeing if they can come up with a better plan. It would let them play and see for themselves. Perhaps that is just my engineering brain and "normal" people wouldn't do this...
I might play with something like this http://xlsxwriter.readthedocs.io/ to generate a spreadsheet for the output.