As for e-books, long story short, my low-tech chop-and-punch method tended to be cheaper and/or more convenient than the available legal e-book options at the time.

I considered scanning, and even had access to a sheet-fed duplex scanner, but given that the only mobile device I had at the time, a 17" PowerBook G4, was both awkward as an e-book reader and heavier than the unbound printed pages I was carrying around, it wasn't worth the hassle.