I use to do this for my trips.
I would save it all and when i got home I would buy a large photo album. I usually tried to get the kind with the plastic pockets for the pictures and the part down the side where you could write a brief note. Pictures went in the front and ticket stubs, maps etc went in the back.
Unfortunately I have gotten lazy, I haven't even put the pictures from my last trip into an album yet and that was 5 months ago.
Phoebe