As one of my roommates and I both use an excessive amount of drinking straws (you don't want to see me drinking anything without one!), we are going to try Glass Dharma's re-usable, "glass" straws.
I learned about this company and the concept over at Retro Housewife Goes Green with this post
It's funny, because sustainable straws are something that I've been thinking on a lot. Not necessarily re-usable glass ones, but thinking more on the origin of straws: as a piece of straw from the fields! But as I couldn't see any easy way to obtain this natural straws, I left myself ruminating and drinking out of plastic.
But! Housemate and I are going to try these out, one for her, one for me (two slightly difference sizes to see what we like) and a bamboo carrying case apiece. If we do like them, we'll buy more for the house, but not the carrying cases -- those are specifically for our purses!
If and when we get the ones for the house, we will probably store them in a similar way to how one stores art brushes -- in a roll up bag of, usually cloth.
The image is of bamboo, but that's the only one that they showed that was open!
I'll let it be known what the opinions of the straws are.