This is a great one just past Windsor called Avonport Discount Fabrics. Not very fancy looking from the outside but awesome inside. And don't let the word 'discount" put you off. They carry wonderful quality fabric and all the notions you can think of.
Here's the link
http://www.avonportdiscountfabrics.com/
If you go to the contact us page there is driving directions. Well worth a visit. They also have a Facebook page.