I found some good advice for eating before a work out that I want to share. It is important to eat before a work out to fuel your way through it. I like the idea of shakes. The simple Bagel and Jam idea is a good idea as well. The key is to get the most from your work out and what and when you eat before hand has an impact.
http://health.usnews.com/health-news/blogs/on-fitness/2011/10/13/best-workout-foods-what-to-eat-before-a-workout