The answer may surprise you.
It depends on what you’re looking for.
If you want a fresh cat, it’s the one that’s been around for a while, says CatSmart UK.
But if you want something to look like a baby cat, a kitten or even a pet, the best option is to go for a cat with an adult pedigree.
“There’s a huge difference in the temperament of the cats,” says CatKind’s Sarah Trowbridge.
“If you’re a cat person who’s used to a cat, you may not want to go to a vet for a pedigree.”
But if your cat is a little old and not particularly interested in getting a new coat, then it’s a great idea to look at the litter box, which will save you time and money.
CatKind UK’s Trowbridges say there’s a big difference between a litter box and a litter bag.
You can get a new litter box at pet stores or online.
And while the old litter boxes don’t hold any litter, the new ones do, says Trowbrides.
And they come with a little treat that you can take to the cat.
The cat will be happy to eat the treat, so there’s no need to worry about litter.
There’s also no need for you to buy a new cat litter.
“When it comes to litter, if you’re trying to make your pet a little more active and socialised, then litter boxes are the way to go,” she says.
And if you like your cat more active, you can also get a litter that contains a small amount of pellets, says Barbara Hill of CatKind.
This is not necessarily a bad thing, says Hill, as cats tend to eat less than people.
But it may be better to buy the old ones rather than the new litter.
CatSmart has also launched a new website, catlifesmart.co.uk, which is geared to people who are interested in buying new litter boxes and other items.
Here’s what it has to say: When it comes down to it, cats love to get a little exercise, and this can lead to health issues, says PetSmart UK’s Peta Wilson.
If a cat’s not getting enough exercise, it may become ill or develop allergies, she says, so it’s best to try and keep a cat active throughout the day.
And then you can get rid of the old cat litter and buy the new one.
This may be easier if you buy new, and also buy a box of old litter.
If that’s not possible, you could buy a bag that has a small, soft litter inside.
There are a lot of options when it comes out to buying a litter, says Ms Trowcroft.
If your cat has a big appetite, she may need a new food tray, which you can buy online or in the local pet shop.
But she may also prefer a new, smaller cat litter, so you could find one online or through a pet store.
If there’s something you’re really looking for, you might want to get yourself a cat food tray.
“We’re not saying that the new cat food should be an absolute must, but if you’ve got a cat that has an appetite for the same amount of food, then you’ll be much better off purchasing the old one,” says Trowsbridge.
So which litter should you choose?
For those that want a litter with the freshest and most exciting colours, it would be best to go with the one with the largest cat litter in it, says the CatKind website.
But, if your pet is a smaller cat, or you don’t mind being messy, there’s nothing wrong with buying a new one, says Wilson.
The bigger the litter, she adds, the more exciting the colour.
And a cat who’s a little bit more adventurous will enjoy the new colour.
So what are the benefits of buying a cat litter?
Well, there are some benefits to buying new cat-friendly litter, said Trowsbridges.
And you can see some of them in the table below.
If the cat’s healthy and happy, you’ll feel happier and more confident about your pet, says Mandy Thompson, chief executive of the UK’s CatKind charity.
If cats are stressed or anxious, they may become aggressive and territorial.
And, as with many things, buying a fresh litter box or litter bag will give you a lot more to look forward to.
But when it’s time to get rid the old and start the new, you should choose a cat-loving cat, says Mr Hill of Peta Hill.
You’ll also get to see the new and old litter together, so that you know what to expect when it all comes together.
If buying a regular litter box is more important to you, the PetSmart website offers advice on choosing the best litter for a variety of reasons.
Read more about buying cat litter: Why do people love to buy cat litter from CatKind