The easiest way with Digital photos and scanning for taken with film pics, for me was to simply have a few photos printed per a4 or bond paper with as Aposhark says some basic notes if you wish or simply make a note in the cover letter of picture 1 2 3 is if you so wish.
If the pages are printed then the photos cant get detached and you have not lost precious pictures as its unlikely you will get back.
We took pictures and a mini guide of my flat at the time of our application. Why well firstly i wanted to ensure i had done everything i could and also to show the wife
I do know back in 2005 one of the checklists the embassy staff look for was evidence of photos of the couple together but this may have changed.
