Yes, I do put the beeswax wads in a ziplock bag. In very warm or hot conditions they are a little tacky so they will stick to each other but are very easy to pull apart. I find using these wads much easier and less messy than either Borebutter or Crisco and much cheaper than Wonder Wads. They also have the added benefit of keeping your pistol well lubed while firing resulting in less binding without the dripping mess.
I have only experienced one chainfire in over 40 years of shooting cap and ball, and that was when I first started out in 1969 and hadn't read or heard about using lube in the cylinders. Little printed info and no interenet in those days!