When I am in the midst of a battle, I need simple stuff to humble me and put me back on-track. Try cleaning your toilet (really), or if you're outside, pick up some garbage off the street.
If your Yetzer Hara does not have a strong grip on you (yet), try changing your thoughts. The mind can only think of one thing at a time... Keep a "happy" image in your mind and switch images.
If you are getting irritated by your kids, let them know you are getting irritated and if they don't stop IT - the funny man with triangle ears will come out and chase them around the house - and turn them into frogs if he catches them (and then squat down and hold onto your ears with elbows sticking out - and chase the kids around the house... making loud funny noises)... It breaks the tension - and lets everyone know you are really CRAZY!!!