If your problem in life is anything less than a literal burning parachute, the best strategy is Don't Panic. Breathe.
This is the classic sticker. 3" x 2.64"
Slap it on your water bottle, laptop, desk, gear bag, helmet, car, or your boss's forehead. Anywhere you need a little reminder to keep yourself together. Sturdy sticker material. Good for indoor and outdoor uses.