what's for breakfast?

personally i leave the house wayyy to early to think about eating when i take my bike to work (420 am).

my wife loves to cook and bake, and i have been trying to find a good carry along breakfast snack to eat when i get to work - maybe home made granola bars or something like that.

at this point i usually buy breakfast at work, but its getting a little expensive, and worse - unhealthy.

what does everyone eat? and when? before the ride? after ?

home made (carry-able) recipes greatly appreciated!