With the holidays just around the bend, a plane, train, or automobile ride is probably in your near future. And, while it's tempting to travel wearing just-rolled-out-of-bed-PJs (comfort is key, right?), you're way chicer than that. Plus, if you're leaving for your trip straight from the office or need to be ready to hit the ground running upon touchdown, sweats aren't really an option. What to wear, then? We turned to professional travelers (a.k.a. the world's most stylish celebs) to glean…