I count calories in the simplest way I can. Everyone will recommend journaling, even me.
But I don't journal. I divide my allotted calories by six and I eat six equal meals throughout the day.
For me, I eat 1200 calories. Divide that by 6 meals to get 200 calories per meal. So I never have to add anything higher than 200.
This method works great for me. But I'm also very conscious of where those calories are coming from. My breakfasts and snacks are pretty automatic now and I make sure my lunches and dinners contain a protein, veggie and a starch (good, healthy fiber). If there's anything I could do better it's to add more veggies.