Fact is, you won't need them again in most of the U.S. for a couple of decades, and some glasses are good only for about three years. (The next total solar eclipse that will be visible from the contiguous U.S. is in 2044, according to NASA.)

That's where a group called Astronomers Without Borders comes in. Instead of letting the goofy goggles pile up in landfills, they're collecting them to send around the world so people in Africa, Asia and South and Central America will have a safe way to stare in awe as the moon blots out the sun over their homes.

Another group, Eclipse Glasses U.S., focuses on kids in developing countries who will have learned about an upcoming eclipse in school but might not have access to the glasses they'll need to safely take a long, hard look.

"It's not just about viewing an eclipse; it's about bridging gaps, connecting people through a shared experience and igniting a passion for the cosmos in young hearts," according to the Eclipse Glasses website.