I would like to suggest a new law (more like an additional option for the "manage treasury" page next to "Send payment")
I may want to donate to a nation's treasury in exchange for goodwill/voodoo deals/diplomacy...
I would like to have the option to send some of my current gold directly to my nation's treasury. I can't remember if this has been suggested before. It may well have since it seems rather obvious to me.
-Captain D