I was minding my own business on a gas route, looking at my woefully low currant count, when suddenly a wild idea appeared! Piggy banks could be a seperate furniture item, with all sorts of different styles and such, and you would be able to squirrel away as many currants in there as you wanted.
There could also be a setting where, for every few currats you make, the piggy bank would automatically store a percentage of those currants! And this would work everywhere, say you sold something out of an sdb for 100 currants, maybe 50% of that would go in your normal currant count, and 50% would go to your bank! Of course the percentage would be adjustable on the bank though depending on how much you wanted to save. And this would work for sdbs, selling things to vendors, trades, even quoins!
I just thought it would be handy for the money concious of us trying to save up for that expensive furniture item. uwu