Favourite ball python substrates and why?

[Sauzo]

I currently use forest floor cyprus mulch in a 20gal tank. However, I have a T10 on order and an almost unlimited supply of newspaper end rolls available so I may try that when they get here.

No....just no....getting a nice sexy T10 and you are going to line it with cheap ugly newspaper!!?? Use something good and do your poor snake a favor