It's been a good summer, fitness-wise, for me. Here are some of the things that have worked out for me:
Eating breakfast. I eat a healthy breakfast most days and it gives me more stamina throughout the day. I usually eat some kind of whole grain cereal with at least two fruits on top (usually banana and some berries) and 1% milk. Occasionally I will have 1 egg with some whole grain toast, a tomato slice, and sometimes a small slice of ham. Also sometimes I have a full Irish breakfast, with vegetables and hash brown potatoes. If I have to skip breakfast, I eat a granola bar.
Lighter dinners: I usually have an early dinner sometimes even around 4 pm if I've skipped lunch. It consists of a few ounces of chicken, fish, or red meat plus two or three vegetables such as sweet potatoes, squash, onions, eggplant, mushrooms or broccoli. Also I often have fruit such as broiled peaches in a spicy oriental sauce. Unless a whole grain is available, I just have a couple of bites of rice or pasta, and if I eat potatoes, I eat them with the skins. I try to avoid eating or drinking anything after 8 pm
Eating out: I try to limit this to once or twice a week, and I schedule extra workouts before or after.
Snacks: I have my favorite "cheating" foods and I've done a good job cutting back on them this summer, especially milk, which I used to put in my coffee, but no more, and raw almonds, which I try to limit to one handful a day. In the afternoons, if I have the urge to eat a snack, I have dinner instead. I keep my alcohol consumption to two small glasses of white wine per day and often I go without.
Exercise: I work out every day or every other day. Once a month, I schedule an all-day hike or other strenuous activity. I use my ipod when working out, and my workout data is sent to Nike+ where I can review it. I change my workout goals often and vary my workout for the best results.
Attitude: I fall off this regimen regularly, but I just pick myself up and get right back on! I hope some of these tips might help you.