It’s nice to feel at home even when you aren’t-but unless your luggage is much, much larger than the suitcase I travel with, you can’t take much of your home with you when you travel. There are some things that you can do to feel at home where you are, wherever that may be: Keep the same smells. The scents we smell are processed in such a primordial part of our brain that they have a direct route to our…