It would be nice if you could save settings for difficulty, interest rate etc - either as aloadable set of options, or by including then in the saved game data.
I like to play at normal difficulty - but my daughter needs to have the difficulty turned down for now (she is only 8 and is only just learning)
However, I need to remember to change these each time and as they are sliders it is hard to tell if you have them exactly the same (perhaps we could have a direct numberical entry as well)
Oh and can I have the moon on a stick as well 
Marcus