Almost literally, I work my as off. I spend a good 4-6 hours per week doing moderate to hard cardio work. I also take park on the far end of a parking lot, take stairs, walk just about anywhere that is within a half mile of where I am, etc. It doesn't take too long before you start to enjoy doing it. In any case, if I want to eat the things I want to eat, drink the things I want to drink, and live the lifestyle I want to live, exercise is the price I must pay. It feels good, too.
On eating, I do not strictly count calories, but I think about what I eat. I not only think about the calories I take in, but all the other nutrition, too. You need more than calories to be healthy, you know.
I avoid junk food except for certain occasions, and I then keep it to a minimum. Really, after those first few chips or so, I eat them more out of habit (or the mere fact of their presence) than enjoyment. When I want to snack, I eat an apple, a grapefruit, a stalk of celery, a cucumber sliced and dipped in vinegar (not as much salt as pickles), a small amount of beef jerky, a small amount of nuts, or an ounce (or less) of cheese. I keep snacks down, too.
On drinking, I rarely drink during the week. It is more of a social thing for me, anyhow. I rarely, rarely drink sodas (i.e., maybe 4 or 5 per year). I just do not like them. I drink lots of water, some tea, and a little coffee. That actually started back in college, when I could not afford sodas. Water was free, and it turned out to be a good habit to get into.
Of course, all that goes out the window now and then. I'll eat and drink like a friggin' viking on a payday when the time is right. All things in moderation, including moderation. So long as I keep in mind that I have to pay for that, somehow or another, it's okay.
As mentioned before, aging is a big deal. It's not as easy to control that weight as it used to be. It is not so much that I have to do more on a day-to-day basis. However, if I go on a bender for a few days or so, I see more of a difference, and it takes longer to recover.
For those that cut back on your food intake so that you can drink more beer, that is a good decision, so long as you don't take it too far. Just be careful to get all the nutrition you need for a day.
TL