Product review (5 stars): Want complete peace of mind? Get these.
These are life changing. Chuck as many of these in your humidor or container and forget about it. I have two large humidors, a&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Boveda-Humidor-Bag-Large-Travel-Humidor-16-X-12-Inch-Perfect-Humidor-Bag-for-Cigars/dp/B019FPZ5CS/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Boveda Humidor Bag -Large Travel Humidor, 16 X 12 Inch Perfect Humidor Bag for Cigars</a>&nbsp;and a number of overflow ziploc bags with cigars, each with one or more Boveda packs in. I sometimes throw a hygrometer in to see how they are doing and lo and behold: all is good and humidity levels are all as expected.

When I decommission a ziploc bag I just throw the Boveda pack I had in there back in another bag or humidor or in the original bag where I have the other unused ones.