RR, I don't race...just organized rides.

I do carry it with me. I actually have 3 bottle cages on the bike, which is helpful for really hot rides.

I put some of the food in pockets and some in an under-seat bag.

The only bulky thing is the yogurt I have for breakfast, which I stop for about the first 10 miles in. After that, it is just gels and bars. I think I grabbed the banana at a rest stop.