My kitty is collecting a lot of litter in his little/BIG paws.

With both my dog and my cat I’ll just run my fingers between their toes as I pet them to check for anything caught in there. They’re used to it now and even like it when I massage their toes 🙂

If you’re using scented litter or something like Oder controlling litter sometimes the scent crystals or Oder absorbing additives get clumped up in your cat’s fur on its paws.
That happened to me once and I changed my litter to a different type without any Oder absorbing stuff in it and it solved the problem

Give them little shoes.

dont get the light weight cat litter if you bought that, last time I bought the light weight cat litter I had the same problem

Give him his favourite treat while you brush his toesies , make it a routine daily

My old cat does the same. I just vacuum his mess. That's it

Trim the fur around his toe beans?

Bath time!

Give him a bath