We get one every year here. I always keep the last year's one in the car in case it would be needed while out and about, and of course, the newest one is kept in the house. And yes, we do use it!
no. and i actually use them too. or at least i did, until they stopped delivering them this year for some reason. that's a great idea! especially since my jack is not quite big enough to change a tire on its own (i can get a flat off, but there's not quite enough room to put the spare back on). if only i had an extra phone book...
i usualy use phonebooks to keep doors open and to rest my drink on when i am lying down outside...in the uk i think they diliver it every few months but i am abroad now so i could be wrong.