Save 40% on your entire order, plus a treat: Through June 27, GlassesUSA(opens in a new tab) is offering 40% off all orders as well as a rare 20% discount on all designer frames from Ray-Ban, Prada, Oakley, and more.

Planning a summer wardrobe is hard when mercurial gas prices could throw a wrench in travel plans at any moment.

But you know what goes with everything? Glasses. Grab a fun new pair of regular eyeglasses, blue light blockers, or sunglasses at GlassesUSA's 40% off sale(opens in a new tab) . (That 40% applies to your entire order.)

Sales on frames often exclude designer frames completely, but through June 27, you can also score a pair of Ray-Bans or Gucci shades for 20% off.

From oversized to cat eye to your classic round or rectangle shape, GlassesUSA has options. With such a lenient send-back policy — free shipping and returns, plus your choice of exchange, refund, or store credit — there's no reason not to experiment with a few designs (and maybe a fun colorful tortoiseshell).