I can relate...I have 2 DDs home from college! Both will be working this summer and I will be home (I teach school.) I do find that my sewing room becomes a storage space for their 'overflow' and I really do not sew as much as I would like. I would say, just set a routine...if you want to sew alone from 7-8, or 9, every evening....just do it. Your DD can find something else to entertain herself....suggest she go for a walk, go play tennis, read a book, whatever she likes to do. I intend to sew in the afternoons while it is hot and nobody is home. Then in the evenings, I will be free to do things with my girls, if they want. Enjoy!