A year ago I came across a blog post about a way to sort your LOs in your albums. After reading on it turned out to be about Stacy Julian's 'Library of Memories' system. I had missed out on signing up for the class at Big Picture Scrapbooking but I decided to implement the album system (four different coloured albums for different 'categories' of LOs - Those we love, All about Us, The places we go and the things we love and do) I ordered the red album as well as the kiwi. I LOVE them! I now have country blue as well and just placed an order a couple of days ago for 4 more. My most full album has 31 page protectors in and not all are double sided but most. It is comfortably full and I do use 'lumpy-bumpy' embelishments but nothing too huge.
If in doubt, get one and try them.
I will never go back to post-bound!