I used to keep very detailed seedling albums, but now settle for the low-effort approach -- mug shots added to my genealogy program. The attached chart illustrates this. It was prepared using Family Tree Maker. With such software I can analyze many multi-generational pedigrees in much less time than it took to compile a 4 or 5-generation pedigree by hand. If a photo has already been linked to each family member, generating a chart like the one I've attached takes just two clicks.