Coastal (also known as Coastal Contacts) offers a select pair of glasses with lenses for free via coupon code "FIRSTPAIRFREE". That's tied with our mention from February as one of the best such offers we've seen from Coastal. Shipping starts around $10. (Note that a mandatory shipping insurance fee, that varies based on the value of the frames, will also be added.) Several terms and conditions apply.

Note: If you have already received a free pair of glasses via a similar promotion from Coastal Contacts, you are not eligible.