Is there food you take with you on a trip?
I don't bring anything with me although I tend to bring food and drink back from faraway places.
I noticed someone posted traveling with Raisin Bran. Mrs BV does the same. She takes Oatmeal Crisp with Almonds and Braggs Apple Cider vinegar. Keeps her regular and heartburn free and she doesn't have to worry about finding a source at her destination.