I have a loose leaf binder too, and a recipe box given to me by and American friend and not much used. The binder used to be so well organised, and now bits of paper float out at random because I haven't put them back properly.
I have Nigella's "Feast" which has several food stained pages, and quite a few of Delia's books - nice and sensible. But, like everything else today, if I want a recipe, I tend to google it. I keep my iPod or iPad in its dock in the kitchen when I'm cooking seriously, the can switch from music to recipe..
BTW, did anyone collect those "Supercook" magazines back in the ??? 60s/ 70s. They used to have a monthly offer of cookware etc which I could never afford...