I recently got a new glasses prescription and have been searching around for some new sunglass frames. I was going to buy them at the optical store I was at but polarized lenses were going to be a small fortune so I decided to look online to see if I could find a more reasonable price. Enter Warby Parker, they offer polarized sunglasses for a price that will allow you to buy them and not live off ramen noodles for the rest of the month. They start at $95 for non prescription and $150 for prescription lenses.
These frames are from there "Try at Home" program, pick 5 frames and they send them to you for free. You have to send them back of course but that's easy too just slap the pre paid postage label on the box drop it off with your mail carrier and you're all done.