How often should a cat use the litter box?

I adopted a 3 year old cat this last weekend. She only pees and poos once each per day. Is this normal for cats?
Answers:
If you only got her last weekend, she is probably still afraid of her new surroundings. It always takes cats 2 weeks to get used to things. She might be toilet trained too. My son adopted one like that and was shocked to see her on the edge of the toilet one day : )

---

once or wice a day
yep
everythings just fine
depends on how often you feed and what she gets fed on

---

As much as they need to. Mine goes sometimes once or twice each, it just depends on how much they are eating and drinking.

---

Yup that sounds about normal to me. But how do you know she is only going once? Could be more "stuff" buried in the litter.