I do the following:
For my T&T collection I use the free pages at:
http://www.precancels.com/standard-...e-below-box/For my Bureau collection, I printed album pages from the PSS computer program (with the Bureau database) to a pdf, and then from the pdf to hard-copy.
I keep my tree killing to a minimum by only printing the pages that I have stamps for.
That said, there are other specialty precancel collection areas (e.g., classics before 1908, silent precancels, precanceled envelopes, etc.). Moreover, as jconey pointed out, many collectors have their their unique ways of organizing precancels.