For me, it's keeping fat intake at about 20% per day (trying not to go over, at all costs) and daily exercise. I tend to skip out on all junk food; the fat I do eat tends to be from things like peanut butter ("good fat" is how you'd put it, I guess!)
Currently I'm battling a cold-sickness of some sort, so... I'm on a fairly random sleeping cycle while my body heals itself.