Start with a large tortilla or wrap - the bigger your tortilla is, the easier it will be to wrap it tight. Heat your tortilla, especially if you are serving immediately. Warming your tortilla will make it more pliable and easier to roll up. Place your filling ingredients to one side of the tortilla. Do NOT overfill! Now, fold the sides together so they are nearly touching. Holding the sides together, use your thumb to bring up the bottom of the tortilla. Pull it in tightly. Roll up the entire burrito as tightly as you can without tearing the wrap. For a visual, refer to my Sweet Potato Breakfast Burritos.