It really depends. I'm pretty good with staying away from fatty foods like chips, burgers, etc.

I eat ALOT of chicken and/or turkey. Veggies are number one on my list. Cheap filler without any consequences. Limit the amount of rice and pasta. I cook at home, so that helps a great deal with controlling my diet. The number one thing is trying to keep track of how many calories I eat and finding low calorie foods.

If I'm working and can't make a sandwich or whatever at home, I eat at Subway's, Wendy's, Taco Bell (3 Tacos =<400 calories) and some other places I can't think of. I buy a salad or chicken sandwich. No cheese, no mayo (that saves about 100 calories). I drink diet soda, tea and coffee with nutrasweet. I look online for every fast food restaurant for their nutritional facts. I try to keep lunch to be in the 5-600 range.

Of course I go crazy sometimes and eat fatty, but for the most part this is how I try to manage my intake.

I think working out at home helps a bit. I usually do situps, pushups, and pull ups before I sleep then work out at the gym whenever I get a chance. I play tennis and ride my bike (~20-30 miles) at times.

When I'm dedicated, I see some damn good results. But that's the problem, dedication can sway back and forth depending on what's going on in my life.
Overall, I've been steady with my weight but my dedication has improved recently.