I love oatmeal, it's warm and filling in the morning and i love how healthy it is (if you don't use the flavored sugar-laden kind).
I'm always looking for new things to put in it too. Here is what i use in my oatmeal (not all at once though
Add-ins while cooking:
Milk instead of water - more nutrients and creamier oatmeal
Raisins (cooking them with the oatmeal makes them plump and tender)
Add-ins as garnish:
applesauce (also helps oatmeal not get stuck to the bowl so it cleans easier)