Great topic because I kept running into a certain problem...
I have essentially stopped collecting, but I still love my collection. My best and favorite cards I had in screw-downs and top-loaders but I realized something....
My collection is not an investment. The older most inserts get the more they lose value. I wanted to ENJOY my collection! The only idea I had for better viewing of my collection was to go ahead and put everything I enjoy looking at back into pages in a notebook.
Shuffling through screw-downs and top-loaders is just not the way to go if you enjoy looking at your collection IMO.
Also I feel like putting a complete set of something in a notebook is the only way to go. How else can you enjoy it? Put every single card into a soft sleeve and shuffle through 'em?

“Most men lead lives of quiet desperation and go to the grave with the song still in them.” --Henry David Thoreau