I have been trying out this method on lifehacker. It's simple, and I use an s-hook to attach it to my hazard 4 iPad case.
currently i carry my jvc marshmallows inside of the case that came with my now dead (murdered to be exact) skullcandy titans
I got this squishy mesh case at a $1.50 store called Daiso. It's made for SD cards but works perfectly for earbuds. Earbud case. by MaxArcher, on Flickr
The carrying case that came with my Shure SE310's. I keep it in my sling bag front pocket or a cargo pocket.
Also, I advise you guys against the open or mesh-style carrying options. That's a good way to get dust up in your buds.
http://www.hersheys.com/icebreakers/mint-products.aspx#/ICE-BREAKERS-FROST-Wintercool-Mints Icebreaker mint containers. Plastic, different colors. When you are done with the mints, peel off the stickers. You've got yourself a case small enough to fit in a pocket, that won't be crushed. These work great for all kinds of EDC uses.