Everything I have in long term storage is opened upon arrival then the box is wrapped in Saran Wrap. I believe in letting them "stew in their own brew". I use coolers as it is more economical and the seal is great. Some people like to do a bit of air exchange from time to time so if you prefer that then I would just close the box back up and store as usual. A lot of serious cigar collectors also keep the humidity in the 55 - 60 range. That will be up to preference.