Litter tray/litter/news paper/scoop Food dishes/water dish Wet and dry cat food and perhaps some extra treats that will supply nutrition for indoor cats (i know Go Cat do indoor cat biscuits) Toys - nothing expensive, just some dangly ones that your child can interact with the cat and perhaps some soft or crinkly balls Blanket or cat bed...not all cats will use a bed, but a good textured blanket works well Scratching post - a MUST for indoor cats Treats to reward good behaviours Flea and worming drops Brush (if they have long hair, otherwise not needed) Pot of living grass - if indoor, this can help. Cats eat grass to aid digestion.
And that's about it.
If you want them to be indoors then you'll need to ask at the rescue place you get one from if the cat is an outdoor or indoor. If they are used to outdoors it would be cruel to keep them in.
I am thinking that in the next year or two I would like to adopt an older cat from a local rescue. I have a dd (4) who would be most enthusiastic and a Dh who is interested but a bit we stay in a ground flat, with a shared garden which the cat could access, but would prefer a cat who likes being in, as we stay close to busy roads. we were due to adopt a cat who had fiv but he died due to an infection. I'm happy with a cat who needs medication such as diabetes, and more looking for one that fits us. I'm more thinking of what we need to buy, and what possible things I should look at or avoid? also just advice on being owned by a cat