I play the piano, and have lots of music in those cheap plastic insert display/sleeve folders. Each time I play, I think they are very ugly and definitely could do with some “prettying up”.
A quick trip to office works and raiding my paper stash later, and look at the collection of pretty music books I now have!
Most of the papers come from The Sweet Stack paper stack I bought at Big W (I think!).
They were just very cheap notebooks, but ended up looking rather lovely!