I like challenges. Last spring, I decided that it'd be fun to sleep outside all summer. So, for the next two months (starting on June 7), I slept on a tree platform in my yard under a tarp, in tents on vacations, and once in a hotel parking lot. By August, I realized that my challenge had been met too easily. That's when my true goal was born.
Now, my goal is to spend a year's worth of consecutive nights outside. In December I built a quinzhee (type of snow shelter), which is where I'm sleeping currently. With the coldest months of the year ahead of me, I'll have some checks, but I have no doubt I can overcome them and reach my goal.