>should be done every time you create a new backup set That could be prohibitively expensive. For personal use, each time I buy a new computer (desktop / noteb

>should be done every time you create a new backup set That could be prohibitively expensive. For personal use, each time I buy a new computer (desktop / notebook alternating) I use it as an opportunity to test my restore procedures. I restore my most recent backup to the new computer, then verify that it operates the same, and has all the same data stores, as my next newest computer (the one whose backup I restored).