I just received approx. 20 yards of gauze fabric of assorted colors. What can I do with it besides make curtains? I've never sewn with it before. Any ideas?

Back in "the day" ...60's early 70's it was a very popular shirt fabric , or beach cover .

It is coming back in "vogue"
You can make simple elastic waisted skirts that are really pretty...

billowy summer curtains for a sunroom?