Heath,
I 3017'ed half a brick of the ABCBA last year. I kept it in an IKEA container with a screw-on lid and never lost any scent. I pif'ed the other half to a friend and, while I'm glad he enjoyed it, I kinda wish I had that other half. It's that good.
Thanks, both you and Bruce kept yours covered. Mine is just a small sample and I put it in an open bowl, I'm sure those two factors are why I don't have any scent left. Oh well, it did shave really nicely. I'll refrain from further performance comments until the sample is gone.