I thought of this overnight. Now that you have 2 cats, you should start clipping their nails. Young cats' nails grow quickly and may need trimming as often as once a week. After about a year of age, every 2 weeks works.

Clipping nails helps with several things: it saves your bedspread and your favorite sweater. It saves on vet bills if they get testy with each other. But mostly, it saves on vet bills even if they are playing. On occasion, a cat will meet its target and hit the other cat in the eye. A scratched cornea will heal, but it is very painful for the cat.

I had this happen once. Naturally this happened at 10 PM on Saturday of a three day weekend (Monday holiday) meaning a quick trip to the emergency vet was required. Expensive. I got 3 medications, one was to numb the eye so she wouldn't feel the pain and could rest. The 2 cats are very good friends, and were playing with a toy when this happened.

Clipping nails is something you can learn to do at home, and build it into your once a week chores. Your vet can teach you how to do it. Everyone develops their own style; I find it easiest seated in a plush chair with the cat wedged in beside me. No cat actually likes having their nails trimmed, thought some struggle a bit more than others. Just keep a treat handy and reward the cat when you finish all 10 toes!