I work for a company that teaches, and travel to conferences. My only problem is breakfast. I can't always break away, and if there is something available, it's usually only continental breakfast.

I would suggest taking a cooler, and going to GNC to get some shakes and other things you can safely munch on. I ended up with bars, and actually gained 2 pounds during the last conference, but I've been easily able to get back on track now that I'm home. Lunch and dinner are never a problem, a meat and a veggie, and I actually love getting to eat out because it gives me a good variety. Just have to brainstorm regarding breakfast so you don't end up eating McDonalds eggs every day.