Adventures in synchronisation volume 2 - Calendar
Synchronising calendar details across multiple devices introduces some additional complications beyond the requirement of static data such as contact details.
Adventures in synchronisation volume 1 - Address book
Although my primary computer has a perfectly acceptable address book I regularly want this information on one of my other devices (tablet, phone other computer, etc). My case might be a bit extreme in terms of the number of devices I use, but the basic problem applies more widely.
I've used some different synchronisation methods in the past but settled on a web based service I can host on my own website.
Moving out - changing web hosts
I've recently moved my web hosting to a different provider and found the migration surprisingly smooth.
That doesn't mean you can ignore basic data security practices, but it's nice to know things can go well.