I'm in the process of sorting through all of mine - not just digital photos but digital artwork too.

I've got an "optimised" folder for each directory, where the pics I have optimised for upload sit. All my originals are also "read only" so I don't inadvertantly save over them.

Currently using the default directory structure for the camera & the phone on the computer - will have to rethink it when I get my new camera next week.

But I'm watching this closely. Will have to invest in an additional external harddrive (my 1 terrabyte drive died with 750gig of files on it - so I'm a bit worried saving all onto that)