Reader mode really helps me in printing as well. Old comment of mine: Printing is something I started to do some months ago. Instead of keeping the tab open for weeks, I decided I'd print anything I want to read and place it a physical "inbox". Some tips: I print 2 pages to a side, so 4 pages per printer paper. Even long articles don't use too much paper, and for my eyes it's still readable (there are a few articles…
I'll be honest, this is my favourite feature of my Kobo - using Pocket to save webpages and articles and read them offline. It seems to accomplish a similar goal to what you do here - without the need for all that paper.
The nice thing about the Kobo is you can install your own software, so there's still hope for a better interface.