* Enough storage at a reasonable price such that I "don't have to think about it"
* Some kind of online-aware virtual file system such that I can see my "online only" files right next to my "offline" files, and only download the online ones if I explictly download or try to access them.
I find many "hardcore" techy backup solutions recommended on HN and elsehwere miss this second bit. I don't particularly want to manage uploading a perfect byte-for-byte replica of my filesystem every month or whatever. I just want it to be magic. Perhaps occasionally I'll put things on my own external SSD. I guess if Microsoft data centers get nuked or whatever I'm SOL on the last 3 months of data updates. I don't really care. I just want the cloud to function as an extension of my local hard drive in the most seamless way possible.