For germing seeds directly in Ji:joy:ffy Pots, use the little pot that came with my wife's Nettie Pot, Nasal Kit - works Great! I give all my seeds a good drink 1 or twice a day, depending on how dry they are.
After seeds are up and growing good, with several sets of leaves, I switch over to a gallon watering pitcher with the long, skinny spout. When plants get big you can snake that skinny spout over/under and between the limbs.