I absolutely must eat something in the mornings, or my acid reflux is killing me by lunch time. I rarely have a heavy breakfast, though. I usually go for cereal, or yogurt with fruit and granola, or a muffin (I love pumpkin muffins!). Sometimes I make little breakfast biscuits with bits of sausage and cheese mixed in, but I'm not always in the mood for something that heavy first thing. I have to be up at least and hour or 2 before I can face a heavy breakfast, though then I like eggs and bacon.
I'm not a coffee person, though. I've never been able to stand the stuff, so I mostly do without coffee. I enjoy tea, but it's more of a treat than an all-the-time thing. Except during exams, then my black and green teas suddenly start to disappear...