PYTHON - Add on to list
<p>What can I write that will add on whatever the user inputs (raw_input / input) to an already existing list? Also, this will have to continue on. For example, if the user adds one item to a list, it will ask if they would like to add another. And if the answer is yes, then it will add another item to the list.</p>

<p>Thanks for any help!</p>
