One thing that I'm genuinely curious about is what do you (not specifically you Lisa, but general you) do for eating meals at restaurants, like when vacationing at WDW?
Great question! I travel 300+ days a year, and have an expense account (I won't tell you how much as it doesn't qualify as 'budget') Eating out every day for every meal really really stinks - it's not glamourous like people think. It's especially difficult for me in some parts of America to find decent veggie food on the menu, and it's no surprise to me that most of my colleagues struggle with our weight.
I usually buy groceries and breakfast in my room while I am working. This is often rye bread and Nutella, or a yoghurt parfait that I make with granola and fruit (but most American yoghurts make me ill, sadly).
My colleagues usually like fast food for lunch; I search out sandwich places or will have crackers and hummus from my room. I also like the veggie/fruit/cheese plates from Starbucks, as these are often around.
I try and limit my dinners 'out' as group meals are often appetizer/entree/dessert. I'll try for an appetizer like tomato/mozzarella salad or something else with cold/fresh veggies. Entrees can be tough in a lot of mid range restaurants, so I often end up with a plate of sides.
My favourite place to eat on a longer trip is at the grocery store - a higher end store like Whole Foods or Wegmans. They usually have a cafe area with some healthier (and not so healthy!) choices, plus it doesn't rob so much of my time to eat there. Or I will take away a prepared meal or bits of meals from those types of stores. The more mid range grocery stores like Safeway, etc don't usually offer up the same range or quality of 'dinner' items, so I don't shop there unless I don't have a choice.
I also like public markets, and have my favourite places. One of my favourites is a 'heart healthy' Indian place which doesn't have the same fat/oil content found in many Americanized Indian restaurants. They do great takeaways and I can get a huge meal of rice, lentils, chick peas, and assorted veggies for under $10.
In Europe I will usually end my day at the grocery store. Places like Monoprix in France have great takeaway items. Then I will stop at a patisserie for some baked goods. My favourite 'dinner' in Paris is a baguette sandwich from Paul or other patisserie. I do something similar in Germany.
Just some random thoughts about my travel experiences!