I started using the strap hinge from cm but I found it a little too inflexible for moving pages around. Now I use the post bound. They're ok because I can move pages around more easily and only have to actually take them apart every once in a while. But I've been seriously considering switching to a D-ring for convenience/ease of use. The only thing that's stopped me is that I'm afraid my two page layouts won't look so nice. Only about 10% or less are two pagers so I'm not too concerned. Any recommendations on sturdy D-rings would be appreciated.