For those of you who have used this product for some time, I have a question. How long do the results last for you? We are new to using it and love the ease and immediate results, but the skin doesn't not stay smooth for very long. We wondered if maybe it would get better with continued usage?? any of you tan while using Magic? If so, do you tan the same day or do you have to wait for a certain amount of time? Thanks in advance....can hardly wait to get to CN!!!!!!