Depends on the group since I collect a few. The only thing that is consitant is having them in chronological order. I like to have pages that are more cohesive so group them by the same outfit whenever possible or just ones that look good together doing so means that pages can have album cards, pobs, lds etc all mixed which I personally don't mind but I know others like to keep everything separate.
It depends if it's a member only or a group but I try to keep similar outfits in one page-if I don't have them I just throw them in the last pages and wait until I get similar fit photocards. If it's a group binder I sort them out by the photocards origin like if the pobs are the same type (makestar etc) and add fillers to the pages where I have most of them and wait until I get the last photocards^^
I go chronologically by era, putting any events/concert/md photocards in the middle of the eras where they happened. Within an era, I put album cards first, then pob/luckydraw, then merch. Happy collecting! <333
Personally what works for me is that I put my favs (like txt and twice for example they would be one of the first pages in my binder) then I go by era and age order. If there's any pob then I sort those by era and age order as well but I put it like before what the actual photocards are if i ever get a full set
Mm it depends for me. If I have multiple groups in one binder I always organize them by the group, then if I have a full set I put the set together (either in debut order, or age) if it’s not a full set I organize it the same way I said in parentheses
Group > member > chronological order
If I have the cards for all member for thay concept they go together and unit cards are at the back of that groups collection
I organize my photocards by album and tour. I also have a second binder for all the members—for special items like Season’s Greetings or fan meeting merchandise—plus an extra folder just for my bias! 🥰
chronologically but i put the japaneses , solo and inclusions in the end
in the page i put the album cards first the a pob or lucky craw with the same outfit