Does anyone have any advice on how to prevent myself from becoming horribly backed up while I'm on a month-long car trip? My normal routine to stay regular involves things that I can't do while traveling, such as eating high-fiber cereal and yogurt every day, sitting idle for hours in the morning in a firm chair while drinking strong coffee, and avoiding greasy food. I'm trying out docusate sodium, but after 5 days on it, I find that it's actually MAKING me constipated and gassy. My next idea is to try Miralax. But I'm afraid that everything will be ineffective while traveling. I've tried Milk of Magnesia on other trips, and I find that I'll still stay constipated for a few days, and then all of a sudden one day everything that was backed up will come out in one horrible liquid explosion, and I'll have stomach cramps for the rest of the day. Then the next day, I'll be backed up again anyway.Do you have any suggestions for something that will:1. Give me the urge to go, even if I'm riding in a car and not relaxing at home.2. Not cause an uncontrollable explosion!3. Not cause dependence on the product after I get home. (I'll be gone for a month and presumably taking it every day while traveling.)4. Not give me gas and bloating.