Still not sure what to spend it on. We were thinking of getting a new washer & dryer, but the rules specifically state that you can't spend the coupons on Neptune washers. We've been wanting to get a front-loading washer because we're on a septic system here and front-loaders use about half the water of top-loaders. We ended up finding a pair of Neptune machines yesterday at the local Sears scratch-n-dent outlet, as the discount they were offering was about what we would've gotten by applying our BB credit anyway.
So I've got several hundred dollars of Best Buy credit burnin' a hole in my pocket.