Too many computers

I manage to bounce between too many computers at home, work, and at friends places. I could centralize to one computer, a laptop, and have everything at risk when it goes missing. I've already centralized some address book stuff onto a server. This is great, but it requires the internet connection. I'm guessing CVS's network model would be better. I could always try WebDAV.

The trick is that each application's file must be "mergeable" with some utility. It doesn't have to be perfect since humans do weird things to files that would fool even the smartest merge. The goal is just to reduce the amount of management required to remember which place has the latest version. Everyone could keep a copy and the version control system would help determine the latest one and help with catching up with all the changes.