A Frustrated Dad sent me a message saying he had an equally annoying experience with a passport booth - well, I've discovered a cunning and much easier way around this problem and it's so cheap, it might even put the dreaded photo booths out of business for good!
Simply use a digital camera to take pix of your littl'un - this way you can prop them up using cushions etc and take as many as you like until you get one you like, then take the camera chip to Asda and use their machines to print ready made passport snaps.
We did this and got a set of six each of me, himself and the baby and it came to £1.92.
Sorted!