Sally"s Chewing

No, she spends all day outside of her cage, unless she wants to nap. She is a very busy ferret compared to the other 2. She doesn't go after electrical cords, but will chew on books, cardboard, shoes, etc. Pretty much everything else!! We purchased Marshall's "Time Out" spray and that seemed to help the past few days, but now she is biting us more!! Any suggestions?