Personally, I recommend Blue Ray backup per year. (ZIPPED SINGLE FILE ONLY), or can try ISO it back from blue ray. More iterative backup uses external HDD. Workspace sync using Live Mesh. Cloud storage is limited to online sharing and some documents that you want to access online.
if you are annoyed by plugging wires, it is better to buy a dock, so you plug monitor and other things as well.
Just my thought.
Also Also prefer app-less backup.