Also, when I was at Sandals in Jamaica, where it was all you can eat all the time, I took some boxes of cereal from the breakfast buffet to use in Belgium. When I got to Belgium I bought yogurt and strawberries to mix with my cereal.
Because I brought protein powder, I also brought with me a water bottle and marked the bottle with a permanent maker to show 1 cup of liquid. I figured my room wouldn't have a measuring cup, so I planned this out before I packed. So I would pour the milk to the line, add Jay Robb's protein powder, and then add ice (because I like my protein drinks ice cold) and shake it up until the protein wasn't clumpy.
Because Steve was at a conference with a lunch included, I ate my breakfast and lunch in our hotel room from the above stash. I made sure to get veggies at dinner.
I should note that our room had a small fridge (it was actually mostly filled with things the hotel wanted you to purchase at insane prices), but even without a fridge, you could enjoy a healthy breakfast in your room.
Do you eat all of your meals out while on vacation, do you pack some food or do you stop at the grocery store when you get to your destination?