Saving money on contact lenses?

I wear contacts a couple times a week, and while I do wear glasses, my vision is just so much better with contact lenses (even though my prescription is current). I can only use daily disposables.

LASIK would be awesome, but I have an immune disorder that makes it a riskier procedure, and my doctor strongly recommended not getting it at this time.

I usually use Vision Direct with a coupon and cash back sites, but it seems the 20% off coupons are getting harder to find for existing customers.

I keep seeing ads for Hubble, but I don't know anyone who's tried them. Figured I would ask here.

Any go-to tricks to save a few bucks on contact lenses without losing your vision?