Nuts

Organised a bit earlier today and got my Blip out of the way,

Does anyone know how to stop dust gathering on shiny perspex? I tried dusting, brushing and blowing, but there were still a lot of dust specks on the surface.  I had to spend ages touching up the dust spots on this image; it didn't help that some of the dust spots I was trying to get rid of turned out to be dust on my computer screen.