Know your cat's coat
Cats' coats vary enormously, from thin single coats to dense double coats packed with soft undercoat, and that difference decides how much help your cat needs from you. Cats with a lot of undercoat shed more and are prone to loose fluff building up close to the skin, even when the coat is short. Longhaired cats add another challenge: mats, which form fastest behind the ears, in the armpits, on the belly and around the rear. A minute spent feeling through the coat with your fingers tells you a lot about what it needs this week.
Brushing routine and tools
For most shorthaired cats, a thorough brushing once a week is enough, while longhaired cats do best with several shorter sessions spread across the week. A comb plus a soft brush covers most needs, and a rubber brush or a de-shedding tool helps lift out loose undercoat. Always work in the direction of the fur and go gently over sensitive areas like the belly and thighs. Use heavy-duty undercoat tools sparingly, since overuse can damage the top coat or irritate the skin.
Surviving shedding season
Most cats shed extra heavily in spring and autumn, though indoor cats living in even temperatures and artificial light may shed steadily all year round. During these weeks, stepping up to more frequent brushing makes a real difference, both to your furniture and to your cat, who otherwise swallows the loose hair while self-grooming and can develop hairballs. Good hydration and a complete food suited to your cat's life stage support the coat from the inside. Baths are rarely needed since cats groom themselves well, but if one is called for, use a mild cat shampoo and rinse thoroughly.
Beyond the brush
Grooming time is the perfect moment for a quick health check of the rest of the cat. Trim sharp claw tips when needed, glance into the ears and clean only the visible outer part, never inside the ear canal, and wipe away any eye discharge with a damp compress. Get kittens used to all of this early, in short calm sessions with treats, and handling will be easy for life, at home as well as at the vet. If you notice skin changes, bald patches, persistent discharge or a coat that suddenly looks unkempt, have a vet take a look.