Either you got an external disk or USB key.
I got all, even the oldest CC from 2006 on an external disk, for memorabilia and no longer to use. But I archived those as winrar and might pick up for clothes of good quality to put on better shoes, etc.
I always keep meshes, even if they're orphans, without textures, because with the many sites closing today it's better to have them than to browse constantly the sims2graveyard (it's loading very slowly for me each time) or anywhere else.
I got my "attic" items from sites which are closed, like sterlingsims, some rarities from sapphiresims. It's precious.
Now for clothes today, I keep unzipped the ones I want for my own retexuring works and clothes "reconversions".
The sorting is progressing for all Bodyshop. For all build and buy modes it's irritating me with packages having a string of letters, numbers, so I have to find the packages with the original labels for those. It's often plants, trees, walls, sometimes doors and such. With DDO it's easy to detect what those packages with numbers and letters are, they could be duplicates for stuff I already have, but they can't be marked as duplicates by DDO. Maybe I'd put some stuffs on an empty lot to sort better, for biuld and buy things needing no Master mesh. The packages with numbers and letters are often included in Sims2Packs. Again this for build an d buy is tons of work ! I'm more familiar with all Bosdyshop.
I hope that your little site is going to be improved. I've seen your CC alphabetical lists. I made my own folder of sites in text documents for the ones I'd visit often or just need to remember for meshes, tutorials, etc.
I'm very sad that BPS is totally gone. I was a member from the reflexsims forum old days by 2006. I miss Jonesi today and hope she's doing well. I kept all her stuff on my external disk and recreated a residential lot after a pic, a lot that she stopped sharing at BPS. I called it "The Jonesi House".