Turbine,
I use an electronic log book now to keep all the records.
If you wondering why, it's because for some reason I accumulated a whole lot of A4 sheets of different certificates and CASA qualification forms etc and I had no place to stick them. It is far easier to pump out a printed copy of my log book and put the pages into one of those clear plastic pocket books. It keeps all the info together.
Moral of the story is that with an electronic log book you only need one. You can get the program to differentiate any info you want, like fixed wing hours, or night hours, or hours on type etc. It makes the whole job alot easier and I have to admit it looks neater as well.
Cheers