Lots of flashes, hairs, and fibers come loose in package, which sucks because its messy and kinda wasteful. They end up all over the place instead of on the flies you've been trying to tie. So I do something that is probably pretty obvious and simple but saves a decent amount of material
and keeps my tying bench slightly less dirty. I bind all those little fibers together with small zip ties so I can actually handle and use them without getting them everywhere.
Did I even need to write anything, the picture was probably enough now that I'm looking at it.