Drink a large glass of water as soon as you wake up--before coffee and before breakfast. It will help keep you from overeating breakfast. It will help rehydrate you after not drinking for several hours. It is also linked to weight loss--it is a little helper that will help you reach your goals.
Non-exercise physical activity (NEPA) like walking or doing dishes or doing houswork helps - potentially a lot more than just calories burned. It extends your lifespan and improves your cholesterol numbers.