Not a B&B, but a cottage I found on Gites.com and cheap as chips, L'Augustin'a, my youngest daughter won't go so you can have it, we're going to rip off Center Parcs instead
If you want very cheap there is a premier class on the roundabout about a mile from the town it's about 30 quid a night iirc for a small room for two it was clean with a shower like a caravan in a pod but loads of hot water though and metal bunk beds just a crash pad really but plenty of parking