I'm tired of switching to print preview the old way ...

Sitting at my computer I usually do not have time enough to read all of the vast amount of interesting web articles I stumble upon.
So I often print the articles and read them while commuting to/from work. But I do not print each article one by one. I copy the articles to a document (a Google document opened in another Firefox tab in fact) and print all the document before I leave the office.

I found that the best source for a copy is a print preview of a web page. But it is not as easy as I would like to get a print preview of a page - I'd prefer one mouse click or a key stroke at the best.
I'm a big Firefox fan. There are tools in Firefox to switch the displayed content into print preview (I'll come to these later).
But I haven't found a Firefox tool which would meat all my preferences on this.

So I decided to do something with it!
What? Stay tuned ...