With regard o costs, Cat Mk 1 costs about £15-20 per week in food (4 x Felix senior pouches per day, plus 1 tin, plus 2 large bowls of dry food).
Cat Mk 2 costs about £5 per week.
Vets fees vary – if you’re lucky then like Cat Mk 2 yours will only cost the price of annual vaccinations.
Worming varies. Cat Mk 1 tends to eat his prey (gross), which is mostly rats (blegh)(despite having worlds loudest bell on his collar) so he is wormed monthly with Milbemax (around £5 a pop). Cat Mk 2 is too retarded to be able to catch much, and far too inept to kill anything he does catch. He gets wormed every three months.
Flea control – Advocate is the best, but also the most expensive. Ours get done every couple of months. Costs about £60 pa.
One further expense – get a good scratching post. If the cat uses it, it will be worth every penny.
Other miscellaneous costs include brushes, catnip, toys, prawn crackers, shampoo, and Dettol (for after you have attempted to apply the shampoo).