While it sounds silly, especially since I have a variety of construction skills, I lay awake some nights stressing about our stairs. We had gotten quotes for replacing the carpet on our stairs with white oak, but the average estimate, not including materials, was $10,000 per flight. Three flights of stairs, at $10K per? Sounded like another job for me — except I had never remodeled stairs, and everyone I knew, including contractor friends, said I shouldn’t try. What really  stressed me out  was the fact I didn’t know what I didn’t know. It’s one thing to think you know how to do something and worry about whether you can actually pull it off; it’s even more stressful to know there are things you don’t know. So I stressed about it while we waited for the wood to arrive, and acclimate. Sound silly? On second thought, not really. Regardless of the worthiness of the cause, if you feel stressed, you feel stressed — and studies show four in five people experience stress at work . Including Jeff Bezos.…