Mum and I made roman blinds for my whole house when I was about 4 weeks pg with DD, so a while ago now, but I *think* these
were the instructions I used. They were surprisingly easy. I did some lined and some not. I also found dowels were pretty pricey, but if you checked out the timber aisles at bunnings, they had other shapes for finishing corners etc that was way cheaper. I used stuff that was kind of shaped like a segment of a circle.