OK so a bit random but...I had cat vaccinated and got some Hills Science food/Prescription Plan vouchers for dogs and cats at Pets at Home.
3 x £10 off 12kg canine or 5kg feline
6 x £5 off 1.5kg canine or feline
To be used by 31/12/09 so well worth it as is expensive stuff.
I don't use either product, if you do let me know and will post you vouchers. First come first served