Yes. Having had my fingers burned too many times in the past I’m completely neurotic about backups. I have a massive archive of all my email on Fastmail, all my working documents are in DropBox, Time Machine does its thing all the time, and my desktop machine gets nightly SuperDuper backups onto an external hard drive, with regular but less frequent ones for my laptop. On top of that all my data, including vast quantities of photos, get backed up off-site using CrashPlan.
Crashplan is very straightforward. I pay them for the service – it’s not hugely expensive and it just works – but there’s a free alternative, see below. It took weeks to finish the initial transfer of the data onto their servers (high speed broadband made a huge difference to that) but once that was done the incremental backups each day don’t take long at all – I’m not even aware of it happening. I use computers all the time for work, but I’m not very technically minded, and this is great for me – it just works. I tried Carbonite for a while first but it kept crashing so I gave up on it and went over to Crashplan.
I know it sounds excessive, but hard drives fail, and computers get stolen. I am completely dependent on my laptop for work, but if it gets nicked I could have a new one up and running where I left off in less than a couple of hours. If the house burnt down it would take me a bit longer, but I’d get my photos back eventually.
You can use the Crashplan software free and just stick an external hard drive on another computer somewhere else, it’ll then back up to that. So you could come to an arrangement with a friend that each of you host the other’s off-site backup. I should probably give it a go, but the setup I have right now works so I’m reluctant to change it…