Kettlebell swings, walking a few miles a day (outside -- get that sunlight!), 8-9 hours of sleep whenever possible (ideally, at the same time each night, but hard when my kid's hockey practices are in the middle of the night and work starts at 5:30 am...), 8+ cups of water a day. I like Mud\Wtr for energy and general wellbeing I get from the blend of adaptogenic mushrooms, though am currently amassing the ingredients to start making my own at 1/5 the cost. Almost never sick, despite living with my kid and my wife who's a teacher. Oh, I and eat a lot of protein -- like 100-200g+ a day. And avoid most processed foods,though sometimes better than others on the sweets Processed here meaning most things from the middle of the grocery store -- I still love my casein protein powder, but prefer avoiding dyes, preservatives, stabilizers, conditioners, etc. Recently ditched seed oils in the kitchen.
Also fasting for Ramadan for the second year in a row right now. Not a Muslim, but I know a practice that builds discipline,purity,and focus where I see one. Cutting down on food cravings when my wife and kid love showing up with pizza and other crap is always an uphill battle.