The little pig had it right.
I dare you to try it. While you're stuck in traffic, or doing laundry, or washing toilets, or sitting in front of a towering IN-box at work, just do it. Say, "Weeeeee!" Say it again. If your kids are still sleeping (as mine are), you might not want to say it just yet. If you're in a staff meeting, you might also consider waiting until you get out. Someone might think you've lost your senses.
But try it. Go ahead. I swear, it works. I do it running errands, on the way to take my kids to school, during the most mundane of tasks (anyone for cleaning out the litter box?). The transformation is immediate and undeniable. My whole attitude shifts, and what was just a crappy chore becomes something far more tolerable (even fun). Suddenly the drive to school becomes a roller coaster ride. Cleaning out the fridge becomes an epic adventure (the exclamation sounds weird refracting off fridge walls). Reading a boring book becomes more interesting.
Don't believe me? Try it. I dare you. I double dare you. I double dog dare you with sugar and a cherry on top! (Is that how you say it? I've never double dog dared anybody before.)