Used to have a neighbor whose favorite between-commutes (two part time jobs and school, averaging about 8-10 miles each) snack was a Whataburger cinnamon roll with 1-2 mocha Clif gels squeezed onto it, (mostly depending on whether she had a headwind that day) washed down with a 1L Coke. Then after work, she'd eat a large Papa John's pizza for dinner, swap to the road bike and go for a training ride. AFAIK, she only ever carried water in her bottles.