Make your own long run fuel

Fact: I am far too cheap to waste $3 worth of Gu on a long run.
Problem: I get hungry. Also I hit the wall all the time, like a dummy.
Solution: Make-your-own-fuel out of crazy cheap ingredients.

You can use either oatmeal or leftover white rice. I think rice is generally a better choice, because it is lower in fiber, but quick oats (rather than old fashioned) work, too.
If you are using oatmeal, cook some up and let it cool. I usually just add some water and microwave it. Try to make it kind of thick.

As it cools, stir in a little maple syrup or honey and some white sugar - more than usual; you want this super sweet to add calories. Yes, I said add calories, I'm going to diet hell.

I put real maple syrup in because I love syrup and I hate oatmeal and I'm trying to cover the taste.

Then scoop it into tiny snack baggies. I put too much in mine because I didn't want to waste baggies (CHEAP), but it would be better to put about half as much so you can eat it all in one sitting. Once you open the bag it gets pretty messy and it's hard to re-close.

To eat, just open a corner and squeeze - like a gel. Only messier.

If you'd rather use rice, it works better if you mash it up a little, and go easy on liquid sweeteners since rice isn't as absorbant. I use rice when I have some leftovers sitting in the fridge.

In the summer, I forego sugar altogether - I replace the calories by bringing Gatorade - and I use salt in the oats or rice instead. I sweat so much in the New Orleans humidity that the only way I can keep my blood pressure at an adequate level is by upping salt. I like the taste better, too - sweet can be tough to take during a hot run.
What's your go-to fuel for long runs? Races?
I actually brought oatmeal for two marathons, one of which was a fairly fast 3:36 (the other sucked, don't ask), but recently I've switched to just gels.