On our recent trip, I planned to take my 35mm and my 18-200 with my D7000. Our departure from home was one of those if it can go wrong, it will mornings and the 18-200 didn't make it into the bag (blessings to our pet sitter who confirmed this within hours so I didn't spend the entire trip worrying that I had somehow lost an $800 lens).
As a result, I just had the 35mm. This actually worked out for me as (1) it is light and (2) I really thought about what I was shooting instead of becoming a vacation-crazed, snapshot shooting monster like I normally do. My results are MUCH better than my usual Disney photos as a result of that thought. Of course, 30 years after my father first placed a Canon AE-1 around my neck, I might finally be learning how to take photographs rather than pictures.
The 35mm was an awesome Disney lens. I'll make sure the 18-200 comes along next time since it is my most versatile lens but the 35mm may keep its spot as lens number one. Of course, maybe Santa is just late getting that wide angle zoom into my Christmas sticking....