It would also be nice for setting up group accounts in which all members could contribute to parties/events, and for "charity" causes like homeless/hungry noobs, pigless streets etc. Utopia (axton) has a lottery app that 'holds currants' until spent on a ticket, i wonder if he could create something similar with a savings account? Who needs a RL anyways right Utopia? Get to it then!
Ooh, even a little piggie bank you could buy and keep in your inventory. Takes the currants out of what you can visibly see/spend, and out of sight, out of mind.