For a few years now I have been using Vetstop to buy all my worming tablets, flea spot on products etc.  I have compared prices with the other on-line pet product stores as well as the discount pet stores and pharmacies (who sell pet products) and this place is consistently cheaper than the rest… even when you factor in the postage costs.  So if you want to save money on your pet supplies look no further than Vetstop.