Google "garden row covers" and also search here on this site. Some members use them, but they won't be talking about it until this Fall.
You can buy online, too.
If you invest in them, take really good care of them, like storage in big, plastic bins, so that you can reuse them in the future.
When we are really tired, end of season, it's easy to be sloppy.
Also, anybody local that sells them will be clearancing, so watch for sales.