Cats and litter tray smells!

[BigbreastsBiggerbeard]

I'm looking after a friend's two cats for a couple of weeks. The cats are adorable and I love them, but oh my giddy aunt - the smells!! If you have cats, do you ever get used to how awful the food smells? And how do you cope with the smell from the litter tray, or do you just get used to it? I'm hyper aware of it (it's in the bathroom) and it's really getting me down - I feel like the smell will permeate my entire house and I'll go out smelling of cat poo!

I know that we become immune to smells if we live with them for long enough but I can't imagine getting used to this and if I could, I'm not sure I'd want to.

Is there anything I can do to reduce the smell? All suggestions gratefully received....