The Path To Laptop Indifference

I'm really loving my new laptop, and I'm pleased with the relative ease in which I've been able to switch to it. Thanks to packages like Xampp, what used to be days of configuration to get a development environment up and running, can now take a few minutes.

This experience has got me thinking more and more, that I one of my real goals as a business should be laptop indifference. That is, I shouldn't be anchored to one or more pieces of hardware.

This is an admirable goal, as it serves as both catastrophe planning (think: laptop gets stolen, dropped, etc.) as well as increases my mobility options (think: can fix issues from an internet cafe, or over a cell phone). But getting there isn't easy. Here's the current approach I'm using to attain this - so techniques here on tried and true, others are new for me.

Got any suggestions for achieving complete hardware indifference? I'd love to hear them!

Task	Hardware Specific	Laptop Indifferent Tool	Pros	Cons
Document creation	Microsoft Office	Google Docs	Collaboration ability; Access from anywhere - including mobile	Functionality is still basic
Notes	Text files and hand written notes	Personal Wiki	Access from anywhere; Version control; Well organized	Loss of convenience
Project files (including source code)	Local subversion repository	Remote Subversion	Allows for development on multiple machines	Requires a remote server of some kind
General programs and tools	Installed locally	Installed locally, and software a master list maintained	List helps to speed up install process by allowing for setup up front, rather than as each tool is needed	Crude solution and one that needs to be improved upon
Browser Bookmarks	bookmarks local to browser	Use Xmarks to remotely synchronize bookmarks	Convenience of local bookmarks, with remote sync ability	None?

So far, I've found that by sticking to the above tools, I'm actually able to jump fairly easily between my older and new laptops.

So what tools and practices should I add to the above list?