When we moved into our home I was cleaning the blinds in my son’s room and they kind of… fell apart. So I used some binder twine and a prayer to hold things together and then tacked a hideous sheet up to provide some better privacy. Yeah. That was a year and a half ago. Good intentions and the road to hell and all that.
Earlier this week I happened to be in his room and said to myself, “Hey, self, I think we might have a little time to resolve this. We’ve even got the fabric in stash!!!” So, voila: lined curtains for the kiddo! He’s very excited. Yes, 13 yo boys are nuts about curtains! 
(it’s late. Sorry…)
This is the very sad “before” pic (and no, that wall isn’t pink. Not sure what’s up with that):
