You had to know it was only a matter of time before I started wondering about composting the guinea pigs bedding. Today's Friday Freebie focuses on just that. It turns out that its ok to do since they are herbivores. Here are some links that discuss it.
BBC Radio 4 Factsheet
Green Steps at Ebinport Elementary School - check out what they're recycling.
Mid Beds District Council Composting - check out what is listed as ok to compost.