I ate sourdough toast with honey before the run and I ate GU gels at miles 5 (no caffeine) and 10 ( a caffeinated one - 20 mg). I don't know if caffeine makes a difference for me, but here's an article that says that it helps. I do think that the pleasant weather helped. It was only about 60* with overcast skies and there was a break from the humidity.
I listened to music during the run, which made running round and round the 3 mile loop at Memorial Park less boring. I usually see "regular" runners and walkers along the way, which makes it feel more like a small town even though this is the fourth largest city in the country. About a mile of the loop that I ran along was on Memorial Drive and is a part of the Houston Marathon route.
Photo: I climbed to the top of the High Temple at the Lamanai Mayan Ruin on a recent trip to Belize. I was too busy trying not to fall down to remember to count the steep steps, but the temple is 108 feet or 33 meters high. From the top, I could see the top of the rain forest for miles and New River, the river that we rode a boat on in order to go to the ruin. I could hear howler monkeys in the distance, too. Unfortunately, we only saw one monkey, but at least my husband got to feed it a banana during our boat ride.