Walk, and walk faster
If you are not willing to have your own workout programme as the one mentioned above, then the simplest thing to do is to walk often. You should walk faster to help you burn more calories. You could also ride a bike instead. If you have a car, consider parking it for a while, especially when going to short destinations. This option can even help release stress and give you more Vitamin D from the sunlight you would be exposed to.
