I'm not on any CTs, so I don't need to sort by site/store. I just have one gigantic folder on my hard drive called "themed kits", and in that folder every kit i've purchased or downloaded has its own folder with all the papers/embellishments/etc inside. I always make sure to keep either the TOU or the 'thank you' file from the designer in the folder so I can give proper credit when I need to (I didn't do that at first, so a lot of my older kits are by 'unknown designers' (oops). for 'odds and ends' freebies i've downloaded, I've also got folders for papers (sorted by colors), templates (subdivided by # of photos in the template), alphas, wordart, and embellishments (subdivided into ribbon/buttons/tags, and i can't remember what else!). The only exceptions to this system is I have a couple of really big folders for "christmas-themed" stuff, easter, and halloween, since those kinds of kits usually blend together anyways. Oh yeah, DUH....I have a big honkin' Disney folder too!
With the way mine's set up, I can see some of the contents of each folder on the thumbnail folder preview, so I can get an 'idea' of the color scheme of the kit in the folder just with a glance (the one good thing about Vista perhaps?), if the name of the kit doesn't jog my memory. I have a brand new Dell laptop, so my harddrive is nowhere near full.......but when it does get there, I have an external I'll start using. I already use it every once in awhile to back up everything.....just in case! With my old laptop, I had to use the external constantly to access the kits 'cuz there wasn't room on the harddrive for all the stuff i had. Once you plug in the external, your laptop recognizes it just as if it were your harddrive, so it's no big deal to access it. I do a lot of scrapping in our car (we visit family 2 1/2 hrs away just about every weekend), so messing with the external all the time got annoying, hence the new laptop!
So that's how I organize all MY stuff.....my digital stuff is way more organized than my paper stuff ever was!!! I never could find stuff when I'd be paper scrapping....I'd know I'd have something....SOMEWHERE, ya know?
good luck!
diana