CALC:
    * if I quit at different times of the financial year, technically the amount I earn will be taxed
    differently, but hard to calc - slides around with tax brackets in future

UI:
   * I *COULD* have a basic date check/workflow, e.g. it now>last_update+14 (and its more than a paydate <- need to think that bit through)
     then the question mark can be more prominent -> use an <alert> that suggests updating as per ?

For bills:
    * if we change certain items on the finance page, need to re-do bills, e.g.
        - change D # pays to quit, or Car lease/buy out
    * might need to be able to mark a specific bill as an outlier:
        - so we ignore the data somehow (think Gas is messing with my bills)
        - and even electricity, water, etc. for when we were away in Europe but mostly gas/elec