I think the ability to Archive to your computer would be better than current archiving, as i think currently for characters and handout it basically just acts like a folder. Archiving to the computer would also be only feasible if combined with another suggestion of being able to archive folders as archiving individual items one at a time to a computer would suck. This feature would really be powerful if maps, characters, handouts, and library items could all be grouped and then Archived to your computer. This would allow for quicker start-up times and allow people to basically create their own modules. If copyright concerns are an issue it could be made as a specific Roll20 file with an account key of some sort so that you couldn't just willy nilly share copyrighted material. It would take a little doing but you could probably make it unparseable to keep pirates at bay.