I have just finished writing my second ebook and I am looking forward to launching it on 1st August. I was wondering if it is a good idea to offer my readers a three day 100% money back gurantee, no questions asked, if the ebook doesn't deliver on what it promises. The reason I am doing this is to increase my credibility and give the customers confidence to buy the ebook. Do you think that this is a good idea or it will backfire on me? Anyone here tried a money back gurantee on an ebook before?