I think the biggest thing is clean as you go. Wash all your knives, cutting boards, dishes, when you are done cooking, not look at a sink full of dishes after you are done. Cleaning as you go helps keep away cross contamination and you avoid having food borne bacteria. – Cat Cora
If eating out, order your meal and ask the server to wrap up half of the portion to take home with your for the next day, keeping your portion size in check, and stretching your dollar into two meals. – Cat Cora