I have curtains and then bamboo shades for my sliding glass doors.
In my bedroom I have a single shade because the doors aren't too wide - about standard width...
In my living room the sliders are huge - so I got two panels that I hung side by side and I added the top down bottom up feature so I had more light control...I'm getting used to them in the living room, they've only been up for about 2 days and I have to adjust them a little...
I had no idea what to do with my sliders - at first I just had the curtains but at night I didn't have 100% privacy and it looked like I had sheets hanging from outside which I didn't like. With the bamboo shades it looks a lot better from outside when the shades are down. Our outdoor area is outside the sliding doors so that is why I was concerned about how it looked from the inside as well as outside.