I had no idea there was InterLibrary Loan but I looked it up for my local library and yup there is. My local library already sort of has this since it shares books with all the libraries in the Fraser Valley. Lots of times I request a book and have to wait a few days for it to get sent from somewhere else.
Getting back into my local library this year has been one of the best decisions I've made. I've diversified my reading by browsing shelves, and had my kids out to lots of great events.