Basing on a certain study, switching your hands in doing some of your daily tasks can be a nice trick for keeping your cool.
For instance, if you are right handed, use your left hand or vice versa like brushing teeth, opening doors, in using your computer mouse, holding and drinking from a glass, etc...
The study found out that exerting your physical control that you need in performing daily tasks with your non-dominant hand can actually strengthens your emotional control.
This is cool. It should be fun trying it. :)