I need to get some advice about reducing my bedding costs. I have one 7 week old GP in a 2x3 C&C cage that I just got 10 days ago. I purchased Carefresh and Yesterday's News to try them out. I use a bottom layer of newspaper on the coroplast, then a layer of Yesterday's News and a Carefresh layer on top to make about 2 inches deep bedding (maybe it was a little deeper after the first change because there was so little left in the bag that I just put it all in). After a week I smelled nothing but I changed all the bedding anyway after reading all of the posts here. Well.. I used all of the bedding that I had left.. so I went through a complete bag of Yesterday's News (I think 25 pounds) and Carefresh (50 liters) with for two changes of bedding! That's expensive! Can anyone give me some advice on cheaper alternatives? I see that aspen shavings would be cheaper, so maybe that's one option I may try. How bad would it be if I waited a little longer to do the complete bedding change as long as the cage looks clean and has no odor? How about a 1 inch layer of bedding instead of two inches?