For business (and pleasure) I tend to travel. A LOT. A quick solution for weight training - Instead of carrying around your dumbbells carry around two water bottles instead. A 20oz weighs 2.5 pounds. Bring them empty on the plane and fill them when you get to your destination. Fit in any workout!
I LOVE pizza, but hate the calories that come with it. Buy "Earthgrains Natural Whole Wheat Thin Buns" which are 100 calories for two halves. Recipe in more information. Result? ~200 calories, 16 g fiber, and a portion friendly snack thats easy!
I'm terrible at getting enough protein in my diet. So here is a trick that I learned: When fixing ANY meal, add 1 cup of unsalted, unroasted pine nuts when you're cooking! It contains 18 grams of protein, they're virtually tasteless, and they add a unique texture to your meal.
By using, say, a smaller salad fork to eat your dinner, it takes you longer to complete your meal and the food has longer to process. By doing this, I've noticed I've started eating around 1/3 less than I used to. "Iced" tea spoons (If you have them) are also smaller, and good for cereal or icecream