I recently listened to one of the podcasts on GTD best practices. David and Kelly were talking about the junior legal pads that they always have on the desk.
That prompted me to post up a simple suggestion which not only allows for a simple capture but also recycles your paper.
Buy an inexpensive paper cutter (I like the guillotine style), have a place to hold our used papers (I use a milk crate, on its side, under my desk).
You know how you always end up with those printed pieces of paper, maybe an email you had to print for a meeting, but is not worth keeping for future reference? I put them in the milk crate and use the full 8.5 x 11 sheets for note taking and for the "always at hand" capture... I use the paper cutter and make 4.25 x 5.5 scrap papers to jot notes and toss in the inbasket.
Hope you all find some use out of this suggestion. It's a nice way to reuse all of that paper waste we make.