You guys must have sturdier phone books than we do. :p I thought "Hey, yeah, brilliant!" and just tried it; unfortunately I could feel the (obviously very flimsy) spine shifting/skewing sideways under me, which was quite unsettling (and using the page edge was even worse), so guess the investing-in-something-stable plan is still on the to-do list. Damn ... and here I was, all excited at this practical and cheap solution. :-(