I randomly go into low level zones, find players with no heirloom or any mains or guilds that I think they have and give them anywhere from 10-500g for no reason.
Since I just quit raiding I gave all of my gold to my good friend, but I will still try to dwindle my 14k I have remaining into the low level populace. I still love WoW for the friends and good times. So making some new persons day makes me happy as much as it makes them happy.