I've been using milkweed for many years and I'm convinced that my way is the best way to pick, store, prep, and use them.
1st off, there's no better container than the pod that God put them in.
The only issue and it's easily fixed, is the pods open as they dry and the floaters all out, make a mess in your gear, or get lost.
The solution is to pick the pods while they're green and wrap each one with a rubber band. They'll dry and remain closed as long as you leave the band on.
Floaters are easily damaged when you stuff them into another container and damaged floaters do not float as well on air currents. A pristine floater, taken straight from the pod, will drift on air current much better.
One more thing I do is attach the pod to a clip so I can't drop it and I don't have to search in a pocket to find it. The pod gets clipped to my coat and I always ready to release a floater instantly.
Try it this way and you'll never again use a container for floaters.
I'll upload a pic via Tapatalk in a minute. Seems the photo is too large to do it through the forum.