SpookyFrank
A cheap source of teeth for aquarium gravel
He's a cunt. Timpson's charged Mrs Sas £15.00 to change a watch battery. The batteries are pennies... lots of lovely profit in that transaction.
(I couldn't get the back off it, or I would have done it myself.)
There's always a bloke in the market who'll do a watch battery far cheaper than timpsons. Your local independent hardware shop will probably cut you a key for a pound as well, not the seven quid or whatever it is for forty seconds' work at timpsons.