One of the best ways to make sure you're drinking clean water when traveling is to filter it yourself. There are a few different ways to do this, depending on what you have access to. If you're able to boil water, that's the easiest and most foolproof method. Just bring the water to a rolling boil for at least one minute. This will kill any harmful bacteria or viruses that might be present. If boiling isn't possible, you can also filter water with a coffee filter, paper towel, or even a clean t-shirt. Just pour the water slowly through the filter to remove any larger particles. Finally, you can also use chemicals to disinfect water. Chlorine tablets are the most common, but you can also use iodine. Follow the instructions on the package to make sure you're using them correctly. With any of these methods, it's important to remember that you'll still need to use clean water to rinse off any dirt or debris before you filter it. And, of course, make sure you filter enough water for everyone in your group so nobody goes thirsty!