If we all had and wanted to use what you are calling that Creative gene, do you really think that there would be books and patterns? To me the creative part comes with choosing fabrics and then where to place them. I think it is creative genius when someone does a really simple pattern and really makes it shine and look way harder just with the use of fabrics and their placement. Heck to lot of people just being able to use a sewing machine is creative genius! Don't take your sisters suggestion so hard, some get really excited when they see beautiful fabric and just start spouting out with things you could do with it!